Add next batch of calculators and AWG support

calculators_list.md

@@ -1903,6 +1903,11 @@ The registry currently contains 1333 unique calculator slugs.
 | Light Years to Fermi – Stretch a light-year into femtometer scales. | light-years-to-fermi | 9.46073047258e+30 |
 | Light Years to Furlongs – Translate cosmic distances into furlongs. | light-years-to-furlongs | 4.70290029855e+13 |
 | Light Years to Hands – Compare a light-year to a stack of hands. | light-years-to-hands | 9.31174259112e+16 |
+| AWG to Circular mils – Convert American Wire Gauge sizes into circular mil areas. | awg-to-circular-mils | electrical | AWG |
+| AWG to Millimeters (diameter) – Express AWG gauge as a diameter in millimeters. | awg-to-millimeters-diameter | electrical | AWG |
+| AWG to Square millimeters (cross-section) – Convert AWG sizes into cross-sectional area in mm². | awg-to-square-millimeters-cross-section | electrical | AWG |
+| Board feet (energy equiv.) to BTU – Convert the energy equivalent of a board foot of lumber into BTUs. | board-feet-energy-equiv-to-btu | energy | 14000 |
+| Brinell to Rockwell C – Approximate Rockwell C hardness from Brinell hardness numbers. | brinell-to-rockwell-c | other | Formula |
 
 ## Completion Checklist
 - [x] Inches to Feet (`inches-to-feet`)
@@ -2920,9 +2925,9 @@ The registry currently contains 1333 unique calculator slugs.
 - [x] Atmosphere to Torr
 - [x] Atomic mass units to Kilograms
 - [x] Atomic time units to Seconds
-- [ ] AWG to Circular mils
+- [x] AWG to Circular mils
-- [ ] AWG to Millimeters (diameter)
+- [x] AWG to Millimeters (diameter)
-- [ ] AWG to Square millimeters (cross-section)
+- [x] AWG to Square millimeters (cross-section)
 - [x] Kilograms to Quarters (1 kilogram ≈ 0.078732 US quarters)
 - [x] Banana equivalent dose to Microsievert
 - [x] Bar to Atmosphere
@@ -2941,11 +2946,11 @@ The registry currently contains 1333 unique calculator slugs.
 - [x] Binary to Octal
 - [x] Bits to Kilobits
 - [x] Bits to Nibbles
-- [ ] Board feet (energy equiv.) to BTU
+- [x] Board feet (energy equiv.) to BTU
 - [x] Board feet to Cubic feet
 - [x] Board feet to Cubic meters
 - [x] Boiler Horsepower to Watts
-- [ ] Brinell to Rockwell C
+- [x] Brinell to Rockwell C
 - [x] BTU to Calories
 - [x] BTU to Joules
 - [x] BTU to Kilowatt-hours
@@ -3004,41 +3009,41 @@ The registry currently contains 1333 unique calculator slugs.
 - [x] Romer difference to newton difference (`romer-difference-to-newton-difference`)
 - [x] Reaumur difference to romer difference (`reaumur-difference-to-romer-difference`)
 - [x] Romer difference to reaumur difference (`romer-difference-to-reaumur-difference`)
-- [ ] Thermal expansion coefficient (per °C) to per °F (`thermal-expansion-coefficient-per-c-to-per-f`)
+- [x] Thermal expansion coefficient (per °C) to per °F (`thermal-expansion-coefficient-per-c-to-per-f`)
-- [ ] Thermal expansion coefficient (per °F) to per °C (`thermal-expansion-coefficient-per-f-to-per-c`)
+- [x] Thermal expansion coefficient (per °F) to per °C (`thermal-expansion-coefficient-per-f-to-per-c`)
-- [ ] Thermal resistance (K/W) to °F·hour/BTU (`thermal-resistance-k-per-watt-to-fahrenheit-hour-btu`)
+- [x] Thermal resistance (K/W) to °F·hour/BTU (`thermal-resistance-k-per-watt-to-fahrenheit-hour-btu`)
-- [ ] Thermal resistance (°F·hour/BTU) to K/W (`thermal-resistance-fahrenheit-hour-btu-to-k-per-watt`)
+- [x] Thermal resistance (°F·hour/BTU) to K/W (`thermal-resistance-fahrenheit-hour-btu-to-k-per-watt`)
-- [ ] Thermal conductivity (W/(m·K)) to BTU/(hr·ft·°F) (`thermal-conductivity-w-per-meter-k-to-btu-per-hour-foot-fahrenheit`)
+- [x] Thermal conductivity (W/(m·K)) to BTU/(hr·ft·°F) (`thermal-conductivity-w-per-meter-k-to-btu-per-hour-foot-fahrenheit`)
-- [ ] Thermal conductivity (BTU/(hr·ft·°F)) to W/(m·K) (`thermal-conductivity-btu-per-hour-foot-fahrenheit-to-w-per-meter-k`)
+- [x] Thermal conductivity (BTU/(hr·ft·°F)) to W/(m·K) (`thermal-conductivity-btu-per-hour-foot-fahrenheit-to-w-per-meter-k`)
-- [ ] Specific heat capacity (J/(kg·K)) to cal/(g·°C) (`specific-heat-j-per-kg-k-to-cal-per-gram-c`)
+- [x] Specific heat capacity (J/(kg·K)) to cal/(g·°C) (`specific-heat-j-per-kg-k-to-cal-per-gram-c`)
-- [ ] Specific heat capacity (cal/(g·°C)) to J/(kg·K) (`specific-heat-cal-per-gram-c-to-j-per-kg-k`)
+- [x] Specific heat capacity (cal/(g·°C)) to J/(kg·K) (`specific-heat-cal-per-gram-c-to-j-per-kg-k`)
-- [ ] Specific heat capacity (J/(kg·K)) to Btu/(lb·°F) (`specific-heat-j-per-kg-k-to-btu-per-pound-f`)
+- [x] Specific heat capacity (J/(kg·K)) to Btu/(lb·°F) (`specific-heat-j-per-kg-k-to-btu-per-pound-f`)
-- [ ] Specific heat capacity (Btu/(lb·°F)) to J/(kg·K) (`specific-heat-btu-per-pound-f-to-j-per-kg-k`)
+- [x] Specific heat capacity (Btu/(lb·°F)) to J/(kg·K) (`specific-heat-btu-per-pound-f-to-j-per-kg-k`)
-- [ ] Volumetric heat capacity (J/(m³·K)) to Btu/(ft³·°F) (`volumetric-heat-capacity-j-per-cubic-meter-k-to-btu-per-cubic-foot-f`)
+- [x] Volumetric heat capacity (J/(m³·K)) to Btu/(ft³·°F) (`volumetric-heat-capacity-j-per-cubic-meter-k-to-btu-per-cubic-foot-f`)
-- [ ] Volumetric heat capacity (Btu/(ft³·°F)) to J/(m³·K) (`volumetric-heat-capacity-btu-per-cubic-foot-f-to-j-per-cubic-meter-k`)
+- [x] Volumetric heat capacity (Btu/(ft³·°F)) to J/(m³·K) (`volumetric-heat-capacity-btu-per-cubic-foot-f-to-j-per-cubic-meter-k`)
-- [ ] Heat flux density (W/m²) to BTU/(hr·ft²) (`heat-flux-density-w-per-square-meter-to-btu-per-hour-square-foot`)
+- [x] Heat flux density (W/m²) to BTU/(hr·ft²) (`heat-flux-density-w-per-square-meter-to-btu-per-hour-square-foot`)
-- [ ] Heat flux density (BTU/(hr·ft²)) to W/m² (`heat-flux-density-btu-per-hour-square-foot-to-w-per-square-meter`)
+- [x] Heat flux density (BTU/(hr·ft²)) to W/m² (`heat-flux-density-btu-per-hour-square-foot-to-w-per-square-meter`)
-- [ ] Heat transfer coefficient (W/(m²·K)) to BTU/(hr·ft²·°F) (`heat-transfer-coefficient-w-per-square-meter-k-to-btu-per-hour-square-foot-f`)
+- [x] Heat transfer coefficient (W/(m²·K)) to BTU/(hr·ft²·°F) (`heat-transfer-coefficient-w-per-square-meter-k-to-btu-per-hour-square-foot-f`)
-- [ ] Heat transfer coefficient (BTU/(hr·ft²·°F)) to W/(m²·K) (`heat-transfer-coefficient-btu-per-hour-square-foot-f-to-w-per-square-meter-k`)
+- [x] Heat transfer coefficient (BTU/(hr·ft²·°F)) to W/(m²·K) (`heat-transfer-coefficient-btu-per-hour-square-foot-f-to-w-per-square-meter-k`)
-- [ ] Thermal expansion coefficient (per °C) to per °K (`thermal-expansion-coefficient-per-c-to-per-k`)
+- [x] Thermal expansion coefficient (per °C) to per °K (`thermal-expansion-coefficient-per-c-to-per-k`)
-- [ ] Thermal expansion coefficient (per °K) to per °C (`thermal-expansion-coefficient-per-k-to-per-c`)
+- [x] Thermal expansion coefficient (per °K) to per °C (`thermal-expansion-coefficient-per-k-to-per-c`)
-- [ ] Thermal expansion coefficient (per °F) to per °R (`thermal-expansion-coefficient-per-f-to-per-r`)
+- [x] Thermal expansion coefficient (per °F) to per °R (`thermal-expansion-coefficient-per-f-to-per-r`)
-- [ ] Thermal expansion coefficient (per °R) to per °F (`thermal-expansion-coefficient-per-r-to-per-f`)
+- [x] Thermal expansion coefficient (per °R) to per °F (`thermal-expansion-coefficient-per-r-to-per-f`)
-- [ ] Thermal resistance (K/W) to m²·K/W (`thermal-resistance-k-per-watt-to-square-meter-k-per-watt`)
+- [x] Thermal resistance (K/W) to m²·K/W (`thermal-resistance-k-per-watt-to-square-meter-k-per-watt`)
-- [ ] Thermal resistance (m²·K/W) to K/W (`thermal-resistance-square-meter-k-per-watt-to-k-per-watt`)
+- [x] Thermal resistance (m²·K/W) to K/W (`thermal-resistance-square-meter-k-per-watt-to-k-per-watt`)
-- [ ] Thermal resistance (m²·K/W) to ft²·°F·h/BTU (`thermal-resistance-square-meter-k-per-watt-to-square-foot-hour-fahrenheit-per-btu`)
+- [x] Thermal resistance (m²·K/W) to ft²·°F·h/BTU (`thermal-resistance-square-meter-k-per-watt-to-square-foot-hour-fahrenheit-per-btu`)
-- [ ] Thermal resistance (ft²·°F·h/BTU) to m²·K/W (`thermal-resistance-square-foot-hour-fahrenheit-per-btu-to-square-meter-k-per-watt`)
+- [x] Thermal resistance (ft²·°F·h/BTU) to m²·K/W (`thermal-resistance-square-foot-hour-fahrenheit-per-btu-to-square-meter-k-per-watt`)
-- [ ] Thermal conductivity (W/(m·K)) to cal/(cm·s·°C) (`thermal-conductivity-w-per-meter-k-to-cal-per-centimeter-second-c`)
+- [x] Thermal conductivity (W/(m·K)) to cal/(cm·s·°C) (`thermal-conductivity-w-per-meter-k-to-cal-per-centimeter-second-c`)
-- [ ] Thermal conductivity (cal/(cm·s·°C)) to W/(m·K) (`thermal-conductivity-cal-per-centimeter-second-c-to-w-per-meter-k`)
+- [x] Thermal conductivity (cal/(cm·s·°C)) to W/(m·K) (`thermal-conductivity-cal-per-centimeter-second-c-to-w-per-meter-k`)
-- [ ] Specific heat capacity (J/(kg·K)) to kJ/(kg·K) (`specific-heat-j-per-kg-k-to-kj-per-kg-k`)
+- [x] Specific heat capacity (J/(kg·K)) to kJ/(kg·K) (`specific-heat-j-per-kg-k-to-kj-per-kg-k`)
-- [ ] Specific heat capacity (kJ/(kg·K)) to J/(kg·K) (`specific-heat-kj-per-kg-k-to-j-per-kg-k`)
+- [x] Specific heat capacity (kJ/(kg·K)) to J/(kg·K) (`specific-heat-kj-per-kg-k-to-j-per-kg-k`)
-- [ ] Volumetric heat capacity (J/(m³·K)) to kJ/(m³·K) (`volumetric-heat-capacity-j-per-cubic-meter-k-to-kj-per-cubic-meter-k`)
+- [x] Volumetric heat capacity (J/(m³·K)) to kJ/(m³·K) (`volumetric-heat-capacity-j-per-cubic-meter-k-to-kj-per-cubic-meter-k`)
-- [ ] Volumetric heat capacity (kJ/(m³·K)) to J/(m³·K) (`volumetric-heat-capacity-kj-per-cubic-meter-k-to-j-per-cubic-meter-k`)
+- [x] Volumetric heat capacity (kJ/(m³·K)) to J/(m³·K) (`volumetric-heat-capacity-kj-per-cubic-meter-k-to-j-per-cubic-meter-k`)
-- [ ] Heat flux density (W/m²) to W/ft² (`heat-flux-density-w-per-square-meter-to-w-per-square-foot`)
+- [x] Heat flux density (W/m²) to W/ft² (`heat-flux-density-w-per-square-meter-to-w-per-square-foot`)
-- [ ] Heat flux density (W/ft²) to W/m² (`heat-flux-density-w-per-square-foot-to-w-per-square-meter`)
+- [x] Heat flux density (W/ft²) to W/m² (`heat-flux-density-w-per-square-foot-to-w-per-square-meter`)
-- [ ] Heat transfer coefficient (W/(m²·K)) to W/(ft²·°F) (`heat-transfer-coefficient-w-per-square-meter-k-to-w-per-square-foot-f`)
+- [x] Heat transfer coefficient (W/(m²·K)) to W/(ft²·°F) (`heat-transfer-coefficient-w-per-square-meter-k-to-w-per-square-foot-f`)
-- [ ] Heat transfer coefficient (W/(ft²·°F)) to W/(m²·K) (`heat-transfer-coefficient-w-per-square-foot-f-to-w-per-square-meter-k`)
+- [x] Heat transfer coefficient (W/(ft²·°F)) to W/(m²·K) (`heat-transfer-coefficient-w-per-square-foot-f-to-w-per-square-meter-k`)
-- [ ] Ampere-turns to Gilberts (`ampere-turns-to-gilberts`)
+- [x] Ampere-turns to Gilberts (`ampere-turns-to-gilberts`)
 - [ ] Gilberts to Ampere-turns (`gilberts-to-ampere-turns`)
 - [ ] Ampere per meter to Oersted (`ampere-per-meter-to-oersted`)
 - [ ] Oersted to Ampere per meter (`oersted-to-ampere-per-meter`)

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

@@ -1,5 +1,5 @@
 // THIS FILE IS AUTO-GENERATED BY migrate.py
-export type CalcType = 'standard' | 'inverse' | '3col' | '3col-mul' | 'base' | 'text-bin' | 'bin-text' | 'dms-dd' | 'dd-dms' | 'dec-frac' | 'db-int' | 'db-spl' | 'db-v' | 'db-w';
+export type CalcType = 'standard' | 'inverse' | '3col' | '3col-mul' | 'base' | 'text-bin' | 'bin-text' | 'dms-dd' | 'dd-dms' | 'dec-frac' | 'db-int' | 'db-spl' | 'db-v' | 'db-w' | 'awg' | 'brinell-rockwell';
 
 export interface CalculatorDef {
   slug: string;
@@ -1598,6 +1598,11 @@ export const calculators: CalculatorDef[] = [
   {"slug": "heat-transfer-coefficient-btu-per-hour-square-foot-f-to-w-per-square-meter-k", "name": "Heat transfer coefficient (BTU/(hr\u00b7ft\u00b2\u00b7\u00b0F)) to W/(m\u00b2\u00b7K)", "category": "energy", "type": "standard", "teaser": "Return imperial coefficients back into SI.", "labels": {"in1": "Heat transfer coefficient (BTU/(hr\u00b7ft\u00b2\u00b7\u00b0F))", "in2": "W/(m\u00b2\u00b7K)"}, "factor": 5.6782633415},
   {"slug": "heat-transfer-coefficient-w-per-square-meter-k-to-w-per-square-foot-f", "name": "Heat transfer coefficient (W/(m\u00b2\u00b7K)) to W/(ft\u00b2\u00b7\u00b0F)", "category": "energy", "type": "standard", "teaser": "Move the conduction coefficient into mixed-area and temperature units.", "labels": {"in1": "Heat transfer coefficient (W/(m\u00b2\u00b7K))", "in2": "W/(ft\u00b2\u00b7\u00b0F)"}, "factor": 0.0516128},
   {"slug": "heat-transfer-coefficient-w-per-square-foot-f-to-w-per-square-meter-k", "name": "Heat transfer coefficient (W/(ft\u00b2\u00b7\u00b0F)) to W/(m\u00b2\u00b7K)", "category": "energy", "type": "standard", "teaser": "Convert the mixed imperial SI coefficient back into its base units.", "labels": {"in1": "Heat transfer coefficient (W/(ft\u00b2\u00b7\u00b0F))", "in2": "W/(m\u00b2\u00b7K)"}, "factor": 19.3750387506},
+  {"slug": "awg-to-circular-mils", "name": "AWG to Circular mils", "category": "electrical", "type": "awg", "teaser": "Convert American Wire Gauge sizes into circular mil areas.", "labels": {"in1": "AWG", "in2": "Circular mils"}},
+  {"slug": "awg-to-millimeters-diameter", "name": "AWG to Millimeters (diameter)", "category": "electrical", "type": "awg", "teaser": "Express AWG gauge as a diameter in millimeters.", "labels": {"in1": "AWG", "in2": "Millimeters (diameter)"}},
+  {"slug": "awg-to-square-millimeters-cross-section", "name": "AWG to Square millimeters (cross-section)", "category": "electrical", "type": "awg", "teaser": "Convert AWG sizes into cross-sectional area in mm\u00b2.", "labels": {"in1": "AWG", "in2": "Square millimeters (cross-section)"}},
+  {"slug": "board-feet-energy-equiv-to-btu", "name": "Board feet (energy equiv.) to BTU", "category": "energy", "type": "standard", "teaser": "Convert the energy equivalent of a board foot of lumber into BTUs.", "labels": {"in1": "Board feet (energy equiv.)", "in2": "BTU"}, "factor": 14000.0},
+  {"slug": "brinell-to-rockwell-c", "name": "Brinell to Rockwell C", "category": "other", "type": "brinell-rockwell", "teaser": "Approximate Rockwell C hardness from Brinell hardness numbers.", "labels": {"in1": "Brinell", "in2": "Rockwell C"}},
 
 ];
 

hdyc-svelte/src/lib/engine.ts

@@ -181,6 +181,74 @@ export function solve(
         out.val1 = (!isNaN(v2) && v2 > 0) ? fmt(10 * Math.log10(v2)) : '';
       }
       break;
+
+    case 'awg': {
+      const log92 = Math.log(92);
+      const awgToDiameterMm = (g: number) => 0.127 * Math.pow(92, (36 - g) / 39);
+      const diameterMmToAwg = (d: number) => 36 - 39 * Math.log(d / 0.127) / log92;
+      const awgToCircularMils = (g: number) => 1000 * Math.pow(92, (36 - g) / 19.5);
+      const circularMilsToAwg = (a: number) => 36 - 19.5 * Math.log(a / 1000) / log92;
+      const awgToAreaMm2 = (g: number) => {
+        const d = awgToDiameterMm(g);
+        return Math.PI * Math.pow(d, 2) / 4;
+      };
+      const areaMm2ToAwg = (a: number) => {
+        const d = Math.sqrt((4 * a) / Math.PI);
+        return diameterMmToAwg(d);
+      };
+
+      const slug = calc.slug;
+      const formatAwg = (g: number) => isFinite(g) ? fmt(g) : '';
+
+      if (slug.includes('circular-mils')) {
+        if (source === 1) {
+          out.val2 = !isNaN(v1) ? fmt(awgToCircularMils(v1)) : '';
+        } else {
+          out.val1 = (!isNaN(v2) && v2 > 0) ? formatAwg(circularMilsToAwg(v2)) : '';
+        }
+      } else if (slug.includes('square-millimeters')) {
+        if (source === 1) {
+          out.val2 = !isNaN(v1) ? fmt(awgToAreaMm2(v1)) : '';
+        } else {
+          out.val1 = (!isNaN(v2) && v2 > 0) ? formatAwg(areaMm2ToAwg(v2)) : '';
+        }
+      } else {
+        // diameter in millimeters
+        if (source === 1) {
+          out.val2 = !isNaN(v1) ? fmt(awgToDiameterMm(v1)) : '';
+        } else {
+          out.val1 = (!isNaN(v2) && v2 > 0) ? formatAwg(diameterMmToAwg(v2)) : '';
+        }
+      }
+      break;
+    }
+
+    case 'brinell-rockwell': {
+      // Approximate correlation for steels:
+      // BHN = (1520000 - 4500 * HRC) / (100 - HRC)^2
+      if (source === 1) {
+        // Brinell to Rockwell C
+        if (!isNaN(v1) && v1 > 0) {
+          const a = v1;
+          const disc = 4500 ** 2 + 4 * a * 1070000;
+          const y = (4500 + Math.sqrt(disc)) / (2 * a);
+          const hrc = 100 - y;
+          out.val2 = fmt(hrc);
+        } else {
+          out.val2 = '';
+        }
+      } else {
+        // Rockwell C to Brinell
+        if (!isNaN(v2) && v2 < 100) {
+          const h = v2;
+          const bhn = (1520000 - 4500 * h) / Math.pow(100 - h, 2);
+          out.val1 = fmt(bhn);
+        } else {
+          out.val1 = '';
+        }
+      }
+      break;
+    }
   }
 
   return out;

hdyc-svelte/src/routes/+page.svelte

@@ -54,7 +54,7 @@
 
 <section class="hero">
   <h1>How Do You Convert?</h1>
-  <p>Fast, bidirectional unit conversions with no ads.</p>
+  <p>Fast unit conversions with no ads.</p>
   <div class="search-center">
     <SearchBar idPrefix="home-search" />
   </div>

migrate.py

@@ -119,7 +119,12 @@ def process():
         factor_val = "1"
         offset_val = "0"
 
-        if '1/x' in factor_raw:
+        # Special-case calculator families that require custom math beyond simple factors.
+        if 'awg' in slug:
+            c_type = 'awg'
+        elif 'brinell-to-rockwell-c' == slug or 'rockwell-c-to-brinell' == slug:
+            c_type = 'brinell-rockwell'
+        elif '1/x' in factor_raw:
             c_type = 'inverse'
             factor_val = "1"
         elif 'Multi-Variable' in factor_raw:
@@ -296,7 +301,7 @@ def process():
     # Ensure types are right
     # write to TS
     out = """// THIS FILE IS AUTO-GENERATED BY migrate.py
-export type CalcType = 'standard' | 'inverse' | '3col' | '3col-mul' | 'base' | 'text-bin' | 'bin-text' | 'dms-dd' | 'dd-dms' | 'dec-frac' | 'db-int' | 'db-spl' | 'db-v' | 'db-w';
+export type CalcType = 'standard' | 'inverse' | '3col' | '3col-mul' | 'base' | 'text-bin' | 'bin-text' | 'dms-dd' | 'dd-dms' | 'dec-frac' | 'db-int' | 'db-spl' | 'db-v' | 'db-w' | 'awg' | 'brinell-rockwell';
 
 export interface CalculatorDef {
   slug: string;