Add more inch & speed conversions

calculators_list.md

@@ -9,7 +9,46 @@ The registry currently contains 1333 unique calculator slugs.
 | Inches to Feet – If a shelf spans 36 inches, how many feet of trim does it cover? | inches-to-feet | length | 12 |
 | Kilograms to Pounds | kilograms-to-pounds | weight | 2.20462262 |
 | Miles to Kilometers – Planning a road trip, how many kilometers will 120 miles travel? | miles-to-kilometers | length | 0.62137119 |
-| Acres to Hectares – A 50-acre farm prompts the question: how many hectares does it include? | acres-to-hectares | area | 0.404686 |
+| Inches per second to Centimeters per second – Translate needle-speed inches per second into centimeters per second for printer and CNC readouts. | inches-per-second-to-centimeters-per-second | speed | 2.54 |
+| Inches per second to Feet per second – Track component velocities by converting inches per second into feet per second. | inches-per-second-to-feet-per-second | speed | 0.08333333333333333 |
+| Inches per second to Furlongs per fortnight – Old-school railway speeds get new life when you express inches per second as furlongs per fortnight. | inches-per-second-to-furlongs-per-fortnight | speed | 152.72727272727272 |
+| Inches per second to Kilometers per hour – Bridge imperial tool speeds to highway-friendly kilometers per hour. | inches-per-second-to-kilometers-per-hour | speed | 0.09144 |
+| Inches per second to Kilometers per second – Frame tiny fast-motion work in kilometers per second for science narratives. | inches-per-second-to-kilometers-per-second | speed | 0.0000254 |
+| Inches per second to Knots – Match machining speeds with knotted nautical rates for maritime equipment specs. | inches-per-second-to-knots | speed | 0.04937365015064678 |
+| Inches per second to Leagues per hour – Compare inches per second with leagues per hour to spice up historic unit stories. | inches-per-second-to-leagues-per-hour | speed | 0.01893939393939394 |
+| Inches per second to Mach – Express precision motion as a fraction of Mach for aerospace context. | inches-per-second-to-mach | speed | 7.464221693261629e-05 |
+| Inches per second to Meters per second – Convert inches per second directly into meters per second for SI compatibility. | inches-per-second-to-meters-per-second | speed | 0.0254 |
+| Inches per second to Miles per hour – Reveal how a craft’s inch-per-second pace stacks up against car-like miles per hour. | inches-per-second-to-miles-per-hour | speed | 0.056818181818181754 |
+| Inches to Angstroms – Translate jewelry-scale dimensions into angstroms when describing atomic thinness. | inches-to-angstroms | length | 253999999.99999997 |
+| Inches to Astronomical Units – Stretch inches all the way into astronomical units for space headlines. | inches-to-astronomical-units | length | 1.6978851290561852e-13 |
+| Inches to Cables – Bridge inch measurements to nautical cables for marine planning. | inches-to-cables | length | 0.00013714902807775378 |
+| Inches to Chains – Put property stakes into historical chains when converting from inches. | inches-to-chains | length | 0.0012626262626262625 |
+| Inches to Cubits – Translate inches into cubits for characterful ancient-builder storytelling. | inches-to-cubits | length | 0.05555555555555555 |
+| Inches to Fathoms – Reframe inches as fathoms when describing water depths. | inches-to-fathoms | length | 0.013888888888888888 |
+| Inches to Fermi – Drop macroscopic inches down to fermi-scale distances for nuclear anecdotes. | inches-to-fermi | length | 25399999999999.996 |
+| Inches to Furlongs – Magazine or racing explainers use inches-to-furlongs as a playful unit change. | inches-to-furlongs | length | 0.00012626262626262626 |
+| Inches to Hands – Convert inches into equestrian hands to describe horse height details. | inches-to-hands | length | 0.25 |
+| Inches to Kilometers – Keep floor plans convertible by expressing inches as kilometers. | inches-to-kilometers | length | 2.5399999999999997e-05 |
+| Inches to Leagues – Extend inches all the way up to leagues when comparing to long-distance lore. | inches-to-leagues | length | 5.26094276094276e-06 |
+| Inches to Micrometers – Express inches as micrometers to align with microscope-ready scales. | inches-to-micrometers | length | 25400.0 |
+| Inches to Microns – Clarify that microns are the same as micrometers when converting inches. | inches-to-microns | length | 25400.0 |
+| Inches to Miles – Translate everyday inches into miles for quick distance sense-making. | inches-to-miles | length | 1.5782828282828283e-05 |
+| Inches to Nanometers – Convert inches into nanometers while talking about semiconductor traces. | inches-to-nanometers | length | 25399999.999999996 |
+| Inches to Nautical Miles – Map inches to nautical miles when discussing marine navigation details. | inches-to-nautical-miles | length | 1.3714902807775378e-05 |
+| Inches to Parsecs – Give inches cosmic flair by converting them into parsecs. | inches-to-parsecs | length | 8.231579396499494e-19 |
+| Inches to Picometers – Bring inches into picometer terms for materials science creativity. | inches-to-picometers | length | 25400000000.0 |
+| Inches to Rods – Convert inches into rods to honor agriculture and land-measure traditions. | inches-to-rods | length | 0.00505050505050505 |
+| Inches to Smoots – Use the quirky Smoot when you really want to know how many smoots fit in an inch. | inches-to-smoots | length | 0.014925373134328358 |
+| Imperial Pints to Pecks – Reframe imperial pints as pecks for agricultural context. | imperial-pints-to-pecks | volume | 0.0625 |
+| Imperial Pints to Quarts – Swap imperial pints for quarts when scaling recipes. | imperial-pints-to-quarts | volume | 0.5 |
+| Imperial Pints to Tablespoons – Turn an imperial pint into tablespoons for precise mixology notes. | imperial-pints-to-tablespoons | volume | 40.0 |
+| Imperial Pints to Teaspoons – Show imperial pints as teaspoons when detailing small-dose pouring. | imperial-pints-to-teaspoons | volume | 120.0 |
+| Imperial Pints to US Gallons – Compare imperial pint pours with gallons on the US side. | imperial-pints-to-us-gallons | volume | 0.15011874068811 |
+| Jiffies to Days – Express UNIX jiffies as days when planning long-duration timers. | jiffies-to-days | time | 1.1574074074074074e-07 |
+| Jiffies to Hours – Convert jiffies into hours to align scheduler metrics with human time. | jiffies-to-hours | time | 2.777777777777778e-06 |
+| Jiffies to Minutes – Show jiffy-based intervals as minutes for context in docs. | jiffies-to-minutes | time | 0.00016666666666666666 |
+| Jiffies to Weeks – Map jiffies onto weeks to describe extended runtimes. | jiffies-to-weeks | time | 1.6534391534391535e-08 |
+| Jiffies to Julian Years – Compare jiffies with Julian years when writing about astronomical timers. | jiffies-to-julian-years | time | 3.168808781402895e-10 |
 | Acres to Square Feet – For the listing, convert 2 acres into square feet to describe the lot size. | acres-to-square-feet | area | 43560.0 |
 | Acre-feet to Liters – A lake holds 1 acre-foot; how many liters of water is that? | acre-feet-to-liters | volume | 1233481.8375476 |
 | Acre-feet to Centiliters – Imagine that same acre-foot expressed in metric centiliters for fluid planning. | acre-feet-to-centiliters | volume | 123348183.75476 |
@@ -7315,11 +7354,11 @@ The registry currently contains 1333 unique calculator slugs.
 - [x] Imperial Pints to Liters
 - [x] Imperial Pints to Milliliters
 - [x] Imperial Pints to Minims
-- [ ] Imperial Pints to Pecks
+- [x] Imperial Pints to Pecks
 - [ ] Imperial Pints to Pints
-- [ ] Imperial Pints to Quarts
+- [x] Imperial Pints to Quarts
-- [ ] Imperial Pints to Tablespoons
+- [x] Imperial Pints to Tablespoons
-- [ ] Imperial Pints to Teaspoons
+- [x] Imperial Pints to Teaspoons
 - [ ] Imperial Pints to Us Gallons
 - [x] Inch-pounds to Dyne-centimeters
 - [x] Inch-pounds to Kilogram-force Meters (`inch-pounds-to-kilogram-force-meters`)
@@ -7364,58 +7403,58 @@ The registry currently contains 1333 unique calculator slugs.
 - [x] Inches Of Water to Technical Atmosphere
 - [x] Inches Of Water to Technical Atmosphere (at)
 - [x] Inches Of Water to Torr
-- [ ] Inches Per Second to Centimeters Per Second
+- [x] Inches Per Second to Centimeters Per Second
-- [ ] Inches Per Second to Feet Per Second
+- [x] Inches Per Second to Feet Per Second
-- [ ] Inches Per Second to Furlongs Per Fortnight
+- [x] Inches Per Second to Furlongs Per Fortnight
-- [ ] Inches Per Second to Kilometers Per Hour
+- [x] Inches Per Second to Kilometers Per Hour
-- [ ] Inches Per Second to km/s
+- [x] Inches Per Second to km/s
-- [ ] Inches Per Second to Knots
+- [x] Inches Per Second to Knots
-- [ ] Inches Per Second to Leagues Per Hour
+- [x] Inches Per Second to Leagues Per Hour
-- [ ] Inches Per Second to Mach
+- [x] Inches Per Second to Mach
-- [ ] Inches Per Second to Meters Per Second
+- [x] Inches Per Second to Meters Per Second
-- [ ] Inches Per Second to Miles Per Hour
+- [x] Inches Per Second to Miles Per Hour
 - [x] Inches Per Second to Speed Of Light
 - [x] Inches Per Second to Speed Of Light (c)
 - [ ] Inches Per Second to Yards Per Second
-- [ ] Inches to Angstroms
+- [x] Inches to Angstroms
-- [ ] Inches to Astronomical Units
+- [x] Inches to Astronomical Units
-- [ ] Inches to Cables
+- [x] Inches to Cables
-- [ ] Inches to Chains
+- [x] Inches to Chains
-- [ ] Inches to Cubits
+- [x] Inches to Cubits
-- [ ] Inches to Fathoms
+- [x] Inches to Fathoms
-- [ ] Inches to Fermi
+- [x] Inches to Fermi
-- [ ] Inches to Furlongs
+- [x] Inches to Furlongs
-- [ ] Inches to Hands
+- [x] Inches to Hands
-- [ ] Inches to Kilometers
+- [x] Inches to Kilometers
-- [ ] Inches to Leagues
+- [x] Inches to Leagues
 - [x] Inches to Light Years
-- [ ] Inches to Micrometers
+- [x] Inches to Micrometers
-- [ ] Inches to Microns
+- [x] Inches to Microns
-- [ ] Inches to Miles
+- [x] Inches to Miles
-- [ ] Inches to Nanometers
+- [x] Inches to Nanometers
-- [ ] Inches to Nautical Miles
+- [x] Inches to Nautical Miles
-- [ ] Inches to Parsecs
+- [x] Inches to Parsecs
-- [ ] Inches to Picometers
+- [x] Inches to Picometers
-- [ ] Inches to Rods
+- [x] Inches to Rods
-- [ ] Inches to Smoots
+- [x] Inches to Smoots
 - [ ] Inches to Thou
 - [ ] Inches to Thou (mil)
 - [ ] Jiffies to Atomic Time Units
 - [ ] Jiffies to Centuries
-- [ ] Jiffies to Days
+- [x] Jiffies to Days
 - [ ] Jiffies to Decades
 - [ ] Jiffies to Fortnights
-- [ ] Jiffies to Hours
+- [x] Jiffies to Hours
-- [ ] Jiffies to Julian Years
+- [x] Jiffies to Julian Years
 - [ ] Jiffies to Microseconds
 - [ ] Jiffies to Milliseconds
-- [ ] Jiffies to Minutes
+- [x] Jiffies to Minutes
 - [ ] Jiffies to Months
 - [ ] Jiffies to Nanoseconds
 - [ ] Jiffies to Planck Time
 - [ ] Jiffies to Shakes
 - [ ] Jiffies to Sidereal Days
-- [ ] Jiffies to Weeks
+- [x] Jiffies to Weeks
 - [ ] Jiffies to Years
 - [x] Jiggers to Acre-feet
 - [x] Jiggers to Barrel (us Oil)

hdyc-svelte/src/lib/data/calculators.ts

@@ -43,7 +43,46 @@ export const calculators: CalculatorDef[] = [
   {"slug": "inches-to-feet", "name": "Inches to Feet", "category": "length", "type": "standard", "teaser": "If a shelf spans 36 inches, how many feet of trim does it cover?", "labels": {"in1": "Inches", "in2": "Feet"}, "factor": 12.0},
   {"slug": "kilograms-to-pounds", "name": "Kilograms to Pounds", "category": "weight", "type": "standard", "labels": {"in1": "Kilograms", "in2": "Pounds"}, "factor": 2.20462262},
   {"slug": "miles-to-kilometers", "name": "Miles to Kilometers", "category": "length", "type": "standard", "teaser": "Planning a road trip, how many kilometers will 120 miles travel?", "labels": {"in1": "Miles", "in2": "Kilometers"}, "factor": 0.62137119, "hidden": true},
-  {"slug": "acres-to-hectares", "name": "Acres to Hectares", "category": "area", "type": "standard", "teaser": "A 50-acre farm prompts the question: how many hectares does it include?", "labels": {"in1": "Acres", "in2": "Hectares"}, "factor": 0.404686},
+  {"slug": "inches-per-second-to-centimeters-per-second", "name": "Inches per second to Centimeters per second", "category": "speed", "type": "standard", "teaser": "Translate needle-speed inches per second into centimeters per second for printer and CNC readouts.", "labels": {"in1": "Inches per second", "in2": "Centimeters per second"}, "factor": 2.54},
+  {"slug": "inches-per-second-to-feet-per-second", "name": "Inches per second to Feet per second", "category": "speed", "type": "standard", "teaser": "Track component velocities by converting inches per second into feet per second.", "labels": {"in1": "Inches per second", "in2": "Feet per second"}, "factor": 0.08333333333333333, "hidden": true},
+  {"slug": "inches-per-second-to-furlongs-per-fortnight", "name": "Inches per second to Furlongs per fortnight", "category": "speed", "type": "standard", "teaser": "Old-school railway speeds get new life when you express inches per second as furlongs per fortnight.", "labels": {"in1": "Inches per second", "in2": "Furlongs per fortnight"}, "factor": 152.72727272727272},
+  {"slug": "inches-per-second-to-kilometers-per-hour", "name": "Inches per second to Kilometers per hour", "category": "speed", "type": "standard", "teaser": "Bridge imperial tool speeds to highway-friendly kilometers per hour.", "labels": {"in1": "Inches per second", "in2": "Kilometers per hour"}, "factor": 0.09144},
+  {"slug": "inches-per-second-to-kilometers-per-second", "name": "Inches per second to Kilometers per second", "category": "speed", "type": "standard", "teaser": "Frame tiny fast-motion work in kilometers per second for science narratives.", "labels": {"in1": "Inches per second", "in2": "Kilometers per second"}, "factor": 2.54e-05},
+  {"slug": "inches-per-second-to-knots", "name": "Inches per second to Knots", "category": "speed", "type": "standard", "teaser": "Match machining speeds with knotted nautical rates for maritime equipment specs.", "labels": {"in1": "Inches per second", "in2": "Knots"}, "factor": 0.04937365015064678},
+  {"slug": "inches-per-second-to-leagues-per-hour", "name": "Inches per second to Leagues per hour", "category": "speed", "type": "standard", "teaser": "Compare inches per second with leagues per hour to spice up historic unit stories.", "labels": {"in1": "Inches per second", "in2": "Leagues per hour"}, "factor": 0.01893939393939394, "hidden": true},
+  {"slug": "inches-per-second-to-mach", "name": "Inches per second to Mach", "category": "speed", "type": "standard", "teaser": "Express precision motion as a fraction of Mach for aerospace context.", "labels": {"in1": "Inches per second", "in2": "Mach"}, "factor": 7.464221693261629e-05, "hidden": true},
+  {"slug": "inches-per-second-to-meters-per-second", "name": "Inches per second to Meters per second", "category": "speed", "type": "standard", "teaser": "Convert inches per second directly into meters per second for SI compatibility.", "labels": {"in1": "Inches per second", "in2": "Meters per second"}, "factor": 0.0254, "hidden": true},
+  {"slug": "inches-per-second-to-miles-per-hour", "name": "Inches per second to Miles per hour", "category": "speed", "type": "standard", "teaser": "Reveal how a craft\u2019s inch-per-second pace stacks up against car-like miles per hour.", "labels": {"in1": "Inches per second", "in2": "Miles per hour"}, "factor": 0.056818181818181754, "hidden": true},
+  {"slug": "inches-to-angstroms", "name": "Inches to Angstroms", "category": "length", "type": "standard", "teaser": "Translate jewelry-scale dimensions into angstroms when describing atomic thinness.", "labels": {"in1": "Inches", "in2": "Angstroms"}, "factor": 253999999.99999997},
+  {"slug": "inches-to-astronomical-units", "name": "Inches to Astronomical Units", "category": "length", "type": "standard", "teaser": "Stretch inches all the way into astronomical units for space headlines.", "labels": {"in1": "Inches", "in2": "Astronomical Units"}, "factor": 1.6978851290561852e-13, "hidden": true},
+  {"slug": "inches-to-cables", "name": "Inches to Cables", "category": "length", "type": "standard", "teaser": "Bridge inch measurements to nautical cables for marine planning.", "labels": {"in1": "Inches", "in2": "Cables"}, "factor": 0.00013714902807775378, "hidden": true},
+  {"slug": "inches-to-chains", "name": "Inches to Chains", "category": "length", "type": "standard", "teaser": "Put property stakes into historical chains when converting from inches.", "labels": {"in1": "Inches", "in2": "Chains"}, "factor": 0.0012626262626262625},
+  {"slug": "inches-to-cubits", "name": "Inches to Cubits", "category": "length", "type": "standard", "teaser": "Translate inches into cubits for characterful ancient-builder storytelling.", "labels": {"in1": "Inches", "in2": "Cubits"}, "factor": 0.05555555555555555},
+  {"slug": "inches-to-fathoms", "name": "Inches to Fathoms", "category": "length", "type": "standard", "teaser": "Reframe inches as fathoms when describing water depths.", "labels": {"in1": "Inches", "in2": "Fathoms"}, "factor": 0.013888888888888888},
+  {"slug": "inches-to-fermi", "name": "Inches to Fermi", "category": "length", "type": "standard", "teaser": "Drop macroscopic inches down to fermi-scale distances for nuclear anecdotes.", "labels": {"in1": "Inches", "in2": "Fermi"}, "factor": 25399999999999.996},
+  {"slug": "inches-to-furlongs", "name": "Inches to Furlongs", "category": "length", "type": "standard", "teaser": "Magazine or racing explainers use inches-to-furlongs as a playful unit change.", "labels": {"in1": "Inches", "in2": "Furlongs"}, "factor": 0.00012626262626262626, "hidden": true},
+  {"slug": "inches-to-hands", "name": "Inches to Hands", "category": "length", "type": "standard", "teaser": "Convert inches into equestrian hands to describe horse height details.", "labels": {"in1": "Inches", "in2": "Hands"}, "factor": 0.25, "hidden": true},
+  {"slug": "inches-to-kilometers", "name": "Inches to Kilometers", "category": "length", "type": "standard", "teaser": "Keep floor plans convertible by expressing inches as kilometers.", "labels": {"in1": "Inches", "in2": "Kilometers"}, "factor": 2.5399999999999997e-05},
+  {"slug": "inches-to-leagues", "name": "Inches to Leagues", "category": "length", "type": "standard", "teaser": "Extend inches all the way up to leagues when comparing to long-distance lore.", "labels": {"in1": "Inches", "in2": "Leagues"}, "factor": 5.26094276094276e-06},
+  {"slug": "inches-to-micrometers", "name": "Inches to Micrometers", "category": "length", "type": "standard", "teaser": "Express inches as micrometers to align with microscope-ready scales.", "labels": {"in1": "Inches", "in2": "Micrometers"}, "factor": 25400.0},
+  {"slug": "inches-to-microns", "name": "Inches to Microns", "category": "length", "type": "standard", "teaser": "Clarify that microns are the same as micrometers when converting inches.", "labels": {"in1": "Inches", "in2": "Microns"}, "factor": 25400.0},
+  {"slug": "inches-to-miles", "name": "Inches to Miles", "category": "length", "type": "standard", "teaser": "Translate everyday inches into miles for quick distance sense-making.", "labels": {"in1": "Inches", "in2": "Miles"}, "factor": 1.5782828282828283e-05},
+  {"slug": "inches-to-nanometers", "name": "Inches to Nanometers", "category": "length", "type": "standard", "teaser": "Convert inches into nanometers while talking about semiconductor traces.", "labels": {"in1": "Inches", "in2": "Nanometers"}, "factor": 25399999.999999996},
+  {"slug": "inches-to-nautical-miles", "name": "Inches to Nautical Miles", "category": "length", "type": "standard", "teaser": "Map inches to nautical miles when discussing marine navigation details.", "labels": {"in1": "Inches", "in2": "Nautical Miles"}, "factor": 1.3714902807775378e-05},
+  {"slug": "inches-to-parsecs", "name": "Inches to Parsecs", "category": "length", "type": "standard", "teaser": "Give inches cosmic flair by converting them into parsecs.", "labels": {"in1": "Inches", "in2": "Parsecs"}, "factor": 8.231579396499494e-19},
+  {"slug": "inches-to-picometers", "name": "Inches to Picometers", "category": "length", "type": "standard", "teaser": "Bring inches into picometer terms for materials science creativity.", "labels": {"in1": "Inches", "in2": "Picometers"}, "factor": 25400000000.0},
+  {"slug": "inches-to-rods", "name": "Inches to Rods", "category": "length", "type": "standard", "teaser": "Convert inches into rods to honor agriculture and land-measure traditions.", "labels": {"in1": "Inches", "in2": "Rods"}, "factor": 0.00505050505050505},
+  {"slug": "inches-to-smoots", "name": "Inches to Smoots", "category": "length", "type": "standard", "teaser": "Use the quirky Smoot when you really want to know how many smoots fit in an inch.", "labels": {"in1": "Inches", "in2": "Smoots"}, "factor": 0.014925373134328358},
+  {"slug": "imperial-pints-to-pecks", "name": "Imperial Pints to Pecks", "category": "volume", "type": "standard", "teaser": "Reframe imperial pints as pecks for agricultural context.", "labels": {"in1": "Imperial Pints", "in2": "Pecks"}, "factor": 0.0625},
+  {"slug": "imperial-pints-to-quarts", "name": "Imperial Pints to Quarts", "category": "volume", "type": "standard", "teaser": "Swap imperial pints for quarts when scaling recipes.", "labels": {"in1": "Imperial Pints", "in2": "Quarts"}, "factor": 0.5},
+  {"slug": "imperial-pints-to-tablespoons", "name": "Imperial Pints to Tablespoons", "category": "volume", "type": "standard", "teaser": "Turn an imperial pint into tablespoons for precise mixology notes.", "labels": {"in1": "Imperial Pints", "in2": "Tablespoons"}, "factor": 40.0},
+  {"slug": "imperial-pints-to-teaspoons", "name": "Imperial Pints to Teaspoons", "category": "volume", "type": "standard", "teaser": "Show imperial pints as teaspoons when detailing small-dose pouring.", "labels": {"in1": "Imperial Pints", "in2": "Teaspoons"}, "factor": 120.0},
+  {"slug": "imperial-pints-to-us-gallons", "name": "Imperial Pints to US Gallons", "category": "volume", "type": "standard", "teaser": "Compare imperial pint pours with gallons on the US side.", "labels": {"in1": "Imperial Pints", "in2": "US Gallons"}, "factor": 0.15011874068811, "hidden": true},
+  {"slug": "jiffies-to-days", "name": "Jiffies to Days", "category": "time", "type": "standard", "teaser": "Express UNIX jiffies as days when planning long-duration timers.", "labels": {"in1": "Jiffies", "in2": "Days"}, "factor": 1.1574074074074074e-07},
+  {"slug": "jiffies-to-hours", "name": "Jiffies to Hours", "category": "time", "type": "standard", "teaser": "Convert jiffies into hours to align scheduler metrics with human time.", "labels": {"in1": "Jiffies", "in2": "Hours"}, "factor": 2.777777777777778e-06, "hidden": true},
+  {"slug": "jiffies-to-minutes", "name": "Jiffies to Minutes", "category": "time", "type": "standard", "teaser": "Show jiffy-based intervals as minutes for context in docs.", "labels": {"in1": "Jiffies", "in2": "Minutes"}, "factor": 0.00016666666666666666},
+  {"slug": "jiffies-to-weeks", "name": "Jiffies to Weeks", "category": "time", "type": "standard", "teaser": "Map jiffies onto weeks to describe extended runtimes.", "labels": {"in1": "Jiffies", "in2": "Weeks"}, "factor": 1.6534391534391535e-08, "hidden": true},
+  {"slug": "jiffies-to-julian-years", "name": "Jiffies to Julian Years", "category": "time", "type": "standard", "teaser": "Compare jiffies with Julian years when writing about astronomical timers.", "labels": {"in1": "Jiffies", "in2": "Julian Years"}, "factor": 3.168808781402895e-10},
   {"slug": "acres-to-square-feet", "name": "Acres to Square Feet", "category": "area", "type": "standard", "teaser": "For the listing, convert 2 acres into square feet to describe the lot size.", "labels": {"in1": "Acres", "in2": "Square Feet"}, "factor": 43560.0},
   {"slug": "acre-feet-to-liters", "name": "Acre-feet to Liters", "category": "volume", "type": "standard", "teaser": "A lake holds 1 acre-foot; how many liters of water is that?", "labels": {"in1": "Acre-feet", "in2": "Liters"}, "factor": 1233481.8375476},
   {"slug": "acre-feet-to-centiliters", "name": "Acre-feet to Centiliters", "category": "volume", "type": "standard", "teaser": "Imagine that same acre-foot expressed in metric centiliters for fluid planning.", "labels": {"in1": "Acre-feet", "in2": "Centiliters"}, "factor": 123348183.75476},
@@ -669,10 +708,6 @@ export const calculators: CalculatorDef[] = [
   {"slug": "feet-per-minute-to-meters-per-second", "name": "Feet per minute to Meters per second", "category": "speed", "type": "standard", "teaser": "Convert static feet-per-minute readings into meters per second.", "labels": {"in1": "Feet per minute", "in2": "Meters per second"}, "factor": 0.00508, "hidden": true},
   {"slug": "feet-per-minute-to-knots", "name": "Feet per minute to Knots", "category": "speed", "type": "standard", "teaser": "Express feet per minute as nautical knots for marine pacing.", "labels": {"in1": "Feet per minute", "in2": "Knots"}, "factor": 0.009874738552689895},
   {"slug": "feet-per-minute-to-inches-per-second", "name": "Feet per minute to Inches per second", "category": "speed", "type": "standard", "teaser": "Show how many inches per second bundle into a foot per minute.", "labels": {"in1": "Feet per minute", "in2": "Inches per second"}, "factor": 0.2, "hidden": true},
-  {"slug": "inches-per-second-to-meters-per-second", "name": "Inches per second to Meters per second", "category": "speed", "type": "standard", "teaser": "Convert inches per second into meters per second for tooling data.", "labels": {"in1": "Inches per second", "in2": "Meters per second"}, "factor": 0.0254, "hidden": true},
-  {"slug": "inches-per-second-to-kilometers-per-hour", "name": "Inches per second to Kilometers per hour", "category": "speed", "type": "standard", "teaser": "Scale compact inch-per-second speeds to km/h.", "labels": {"in1": "Inches per second", "in2": "Kilometers per hour"}, "factor": 0.09144},
-  {"slug": "inches-per-second-to-miles-per-hour", "name": "Inches per second to Miles per hour", "category": "speed", "type": "standard", "teaser": "Relate inches-per-second feed rates back to miles per hour.", "labels": {"in1": "Inches per second", "in2": "Miles per hour"}, "factor": 0.056818276, "hidden": true},
-  {"slug": "inches-per-second-to-knots", "name": "Inches per second to Knots", "category": "speed", "type": "standard", "teaser": "Translate inch-per-second flows into nautical knots.", "labels": {"in1": "Inches per second", "in2": "Knots"}, "factor": 0.04937369276344947},
   {"slug": "inches-per-second-to-feet-per-minute", "name": "Inches per second to Feet per minute", "category": "speed", "type": "standard", "teaser": "Express inches per second as feet per minute for incremental planning.", "labels": {"in1": "Inches per second", "in2": "Feet per minute"}, "factor": 4.999999999998},
   {"slug": "inches-per-minute-to-meters-per-second", "name": "Inches per minute to Meters per second", "category": "speed", "type": "standard", "teaser": "Turn slow inch-per-minute values into meters per second.", "labels": {"in1": "Inches per minute", "in2": "Meters per second"}, "factor": 0.00042333333333333334},
   {"slug": "inches-per-minute-to-kilometers-per-hour", "name": "Inches per minute to Kilometers per hour", "category": "speed", "type": "standard", "teaser": "Scale an inch-per-minute pace onto km/h.", "labels": {"in1": "Inches per minute", "in2": "Kilometers per hour"}, "factor": 0.0015239999999999997},
@@ -1484,7 +1519,6 @@ export const calculators: CalculatorDef[] = [
   {"slug": "inch-pounds-to-foot-pounds", "name": "Inch-Pounds to Foot-Pounds", "category": "force", "type": "standard", "teaser": "Convert Inch-Pounds to Foot-Pounds instantly.", "labels": {"in1": "Inch-Pounds", "in2": "Foot-Pounds"}, "factor": 0.0833333, "hidden": true},
   {"slug": "inch-pounds-to-newton-meters", "name": "Inch-Pounds to Newton-Meters", "category": "force", "type": "standard", "teaser": "Convert Inch-Pounds to Newton-Meters instantly.", "labels": {"in1": "Inch-Pounds", "in2": "Newton-Meters"}, "factor": 0.112985, "hidden": true},
   {"slug": "inches-of-water-to-psi", "name": "Inches of Water to PSI", "category": "length", "type": "standard", "teaser": "Convert Inches of Water to PSI instantly.", "labels": {"in1": "Inches of Water", "in2": "PSI"}, "factor": 0.0360912},
-  {"slug": "inches-per-second-to-cm-per-second", "name": "Inches per second to cm per second", "category": "length", "type": "standard", "teaser": "Convert Inches per second to Centimeters per second instantly.", "labels": {"in1": "Inches per second", "in2": "cm per second"}, "factor": 2.54},
   {"slug": "inches-to-meters", "name": "Inches to Meters", "category": "length", "type": "standard", "teaser": "Convert Inches to Meters instantly.", "labels": {"in1": "Inches", "in2": "Meters"}, "factor": 0.0254, "hidden": true},
   {"slug": "inches-to-points", "name": "Inches to Points", "category": "length", "type": "standard", "teaser": "Convert Inches to Points instantly.", "labels": {"in1": "Inches", "in2": "Points"}, "factor": 72.0},
   {"slug": "inches-to-yards", "name": "Inches to Yards", "category": "length", "type": "standard", "teaser": "Convert Inches to Yards instantly.", "labels": {"in1": "Inches", "in2": "Yards"}, "factor": 0.0277778},
@@ -2353,7 +2387,7 @@ export const calculators: CalculatorDef[] = [
   {"slug": "angstroms-to-fermi", "name": "Angstroms to Fermi", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Fermi"}, "factor": 100000.0},
   {"slug": "angstroms-to-furlongs", "name": "Angstroms to Furlongs", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Furlongs"}, "factor": 4.970969537898671e-13, "hidden": true},
   {"slug": "angstroms-to-hands", "name": "Angstroms to Hands", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Hands"}, "factor": 9.84251968503937e-10, "hidden": true},
-  {"slug": "angstroms-to-inches", "name": "Angstroms to Inches", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Inches"}, "factor": 3.937007874015748e-09},
+  {"slug": "angstroms-to-inches", "name": "Angstroms to Inches", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Inches"}, "factor": 3.937007874015748e-09, "hidden": true},
   {"slug": "angstroms-to-kilometers", "name": "Angstroms to Kilometers", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Kilometers"}, "factor": 1e-13},
   {"slug": "angstroms-to-leagues", "name": "Angstroms to Leagues", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Leagues"}, "factor": 2.07123730745778e-14},
   {"slug": "angstroms-to-meters", "name": "Angstroms to Meters", "category": "length", "type": "standard", "labels": {"in1": "Angstroms", "in2": "Meters"}, "factor": 1e-10},
@@ -3009,7 +3043,7 @@ export const calculators: CalculatorDef[] = [
   {"slug": "fermi-to-feet", "name": "Fermi to Feet", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Feet"}, "factor": 3.2808398950131234e-15},
   {"slug": "fermi-to-furlongs", "name": "Fermi to Furlongs", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Furlongs"}, "factor": 4.970969537898672e-18, "hidden": true},
   {"slug": "fermi-to-hands", "name": "Fermi to Hands", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Hands"}, "factor": 9.842519685039371e-15, "hidden": true},
-  {"slug": "fermi-to-inches", "name": "Fermi to Inches", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Inches"}, "factor": 3.9370078740157484e-14},
+  {"slug": "fermi-to-inches", "name": "Fermi to Inches", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Inches"}, "factor": 3.9370078740157484e-14, "hidden": true},
   {"slug": "fermi-to-kilometers", "name": "Fermi to Kilometers", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Kilometers"}, "factor": 1e-18},
   {"slug": "fermi-to-leagues", "name": "Fermi to Leagues", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Leagues"}, "factor": 2.07123730745778e-19},
   {"slug": "fermi-to-micrometers", "name": "Fermi to Micrometers", "category": "length", "type": "standard", "labels": {"in1": "Fermi", "in2": "Micrometers"}, "factor": 1e-09},
@@ -3043,7 +3077,7 @@ export const calculators: CalculatorDef[] = [
   {"slug": "fluid-ounces-to-jiggers", "name": "Fluid Ounces to Jiggers", "category": "volume", "type": "standard", "labels": {"in1": "Fluid Ounces", "in2": "Jiggers"}, "factor": 0.6666665816619816, "hidden": true},
   {"slug": "fluid-ounces-to-minims", "name": "Fluid Ounces to Minims", "category": "volume", "type": "standard", "labels": {"in1": "Fluid Ounces", "in2": "Minims"}, "factor": 480.0},
   {"slug": "fluid-ounces-to-pecks", "name": "Fluid Ounces to Pecks", "category": "volume", "type": "standard", "labels": {"in1": "Fluid Ounces", "in2": "Pecks"}, "factor": 0.0032526328195197373},
-  {"slug": "furlongs-per-fortnight-to-inches-per-second", "name": "Furlongs Per Fortnight to Inches Per Second", "category": "speed", "type": "standard", "labels": {"in1": "Furlongs Per Fortnight", "in2": "Inches Per Second"}, "factor": 0.006547619047619048},
+  {"slug": "furlongs-per-fortnight-to-inches-per-second", "name": "Furlongs Per Fortnight to Inches Per Second", "category": "speed", "type": "standard", "labels": {"in1": "Furlongs Per Fortnight", "in2": "Inches Per Second"}, "factor": 0.006547619047619048, "hidden": true},
   {"slug": "furlongs-per-fortnight-to-kilometers-per-hour", "name": "Furlongs Per Fortnight to Kilometers Per Hour", "category": "speed", "type": "standard", "labels": {"in1": "Furlongs Per Fortnight", "in2": "Kilometers Per Hour"}, "factor": 0.0005987142857142858},
   {"slug": "furlongs-per-fortnight-to-km-s", "name": "Furlongs Per Fortnight to km/s", "category": "speed", "type": "standard", "labels": {"in1": "Furlongs Per Fortnight", "in2": "km/s"}, "factor": 1.6630952380952382e-07},
   {"slug": "furlongs-per-fortnight-to-knots", "name": "Furlongs Per Fortnight to Knots", "category": "speed", "type": "standard", "labels": {"in1": "Furlongs Per Fortnight", "in2": "Knots"}, "factor": 0.0003232798521768539},