# Active Calculators Registry

This document lists all active calculators on `howdoyouconvert.com`. 
Whenever a new calculator is published via the REST API, it must be appended here including its matching Javascript element ID.

| Calculator Name | Page Post ID | Kadence JS Element ID | Slug | Conversion Factor |
| :--- | :--- | :--- | :--- | :--- |
| Inches to Feet | 16 | 57 | inches-to-feet | 12 |
| Kilograms to Pounds | 54 | 28 | kilograms-to-pounds | 0.453592 |
| Miles to Kilometers | 102 | 103 | miles-to-kilometers | 0.62137119 |
| Acres to Hectares | 107 | 108 | acres-to-hectares | 0.404686 |
| Acres to Square Feet | 109 | 110 | acres-to-square-feet | 43560.0 |
| Angstroms to Nanometers | 111 | 112 | angstroms-to-nanometers | 0.1 |
| Apothecary Ounces to Grams | 113 | 114 | apothecary-ounces-to-grams | 31.1034768 |
| Astronomical Units to Light Years | 115 | 116 | astronomical-units-to-light-years | 0.0000158125074 |
| Atmosphere to mmHg | 117 | 118 | atmosphere-to-mmhg | 760.0 |
| Attograms to Femtograms | 119 | 120 | attograms-to-femtograms | 0.001 |
| Bar to Pascal | 121 | 122 | bar-to-pascal | 100000.0 |
| Bar to PSI | 123 | 124 | bar-to-psi | 14.5037738 |
| Becquerel to Curie | 125 | 126 | becquerel-to-curie | 2.7027027e-11 |
| Becquerel to Rutherford | 127 | 128 | becquerel-to-rutherford | 0.000001 |
| Bits to Bytes | 129 | 130 | bits-to-bytes | 0.125 |
| BTU to Kilojoules | 131 | 132 | btu-to-kilojoules | 1.05505585 |
| BTU/hour to Watts | 133 | 134 | btuhour-to-watts | 0.293071 |
| Calories to Joules | 135 | 136 | calories-to-joules | 4.184 |
| Calories to Kilojoules | 137 | 138 | calories-to-kilojoules | 4.184 |
| ASCII to Binary | 139 | 140 | ascii-to-binary | N/A (Text) |
| Amps to Volts | 141 | 142 | amps-to-volts | Multi-Variable |
| Binary to ASCII | 151 | 152 | binary-to-ascii | N/A (Text) |
| Binary to Decimal | 153 | 154 | binary-to-decimal | N/A (Text) |
| Binary to Hex | 155 | 156 | binary-to-hex | N/A (Text) |
| Amps to Watts | 149 | 150 | amps-to-watts | Multi-Variable |
| Amps to Kilowatts | 159 | 160 | amps-to-kilowatts | Multi-Variable |
| Amps to kVA | 161 | 162 | amps-to-kva | Multi-Variable |
| Carats to Grams | 163 | 164 | carats-to-grams | 0.2 |
| Celsius to Fahrenheit | 165 | 166 | celsius-to-fahrenheit | Linear Offset (1.8x + 32) |
| Centimeters to Inches | 167 | 168 | centimeters-to-inches | 0.393700787 |
| CFS to CMS | 169 | 170 | cfs-to-cms | 0.0283168466 |
| CMS to CFS | 171 | 172 | cms-to-cfs | 35.3146667 |
| Coulomb per Kilogram to Roentgen | 173 | 174 | coulomb-per-kilogram-to-roentgen | 3875.96899 |
| Cups to Milliliters | 175 | 176 | cups-to-milliliters | 236.588237 |
| Curie to Becquerel | 177 | 178 | curie-to-becquerel | 3.7e10 |
| Daltons to AMU | 179 | 180 | daltons-to-amu | 1.0 |
| Days to Hours | 181 | 182 | days-to-hours | 24.0 |
| Days to Weeks | 193 | 194 | days-to-weeks | 0.142857143 |
| Days to Years | 195 | 196 | days-to-years | 0.002737851 |
| Degrees to Mils | 197 | 198 | degrees-to-mils | 17.777777778 |
| Degrees to Radians | 199 | 200 | degrees-to-radians | 0.017453293 |
| Dynes to Newtons | 201 | 202 | dynes-to-newtons | 1e-05 |
| Ergs to Joules | 203 | 204 | ergs-to-joules | 1e-07 |
| Feet to Meters | 205 | 206 | feet-to-meters | 0.3048 |
| Foot-Pounds to Newton-Meters | 207 | 208 | foot-pounds-to-newton-meters | 1.35581795 |
| Gallons to Liters | 209 | 210 | gallons-to-liters | 3.78541178 |
| Gigabytes to Megabytes | 211 | 212 | gigabytes-to-megabytes | 1000.0 |
| Fahrenheit to Celsius | 214 | 215 | fahrenheit-to-celsius | Linear Offset (5/9x - 17.778) |
| Feet per Second to Meters per Second | 216 | 217 | feet-per-second-to-meters-per-second | 0.3048 |
| Fluid Ounces to Milliliters | 218 | 219 | fluid-ounces-to-milliliters | 29.5735296 |
| Gallons per Minute to Liters per Second | 220 | 221 | gallons-per-minute-to-liters-per-second | 0.0630901964 |
| Grains to Grams | 222 | 223 | grains-to-grams | 0.06479891 |
| Grams to Milligrams | 224 | 225 | grams-to-milligrams | 1000.0 |
| Grams to Ounces | 226 | 227 | grams-to-ounces | 0.0352739619 |
| Grams to Pennyweights | 228 | 229 | grams-to-pennyweights | 0.643014931 |
| Grams to Troy Ounces | 230 | 231 | grams-to-troy-ounces | 0.0321507466 |
| Gray to Rad | 232 | 233 | gray-to-rad | 100.0 |
| Grams to Apothecary Ounces | 234 | 235 | grams-to-apothecary-ounces | 0.0321507466 |
| Grams to Carats | 236 | 237 | grams-to-carats | 5.0 |
| Grams to Grains | 238 | 239 | grams-to-grains | 15.4323584 |
| Horsepower to Kilowatts | 240 | 241 | horsepower-to-kilowatts | 0.745699872 |
| Hours to Days | 242 | 243 | hours-to-days | 0.0416666667 |
| Hours to Minutes | 244 | 245 | hours-to-minutes | 60.0 |
| Inches of Mercury to Pascals | 246 | 247 | inches-of-mercury-to-pascals | 3386.389 |
| Inches of Water to Pascals | 248 | 249 | inches-of-water-to-pascals | 249.08891 |
| Inches to Centimeters | 250 | 251 | inches-of-centimeters | 2.54 |
| Inches to Millimeters | 252 | 253 | inches-of-millimeters | 25.4 |
| Centigrams to Grams | 347 | 348 | centigrams-to-grams | 0.01 |
| Centiliters to Liters | 349 | 350 | centiliters-to-liters | 0.01 |
| Centimeters to Feet | 351 | 352 | centimeters-to-feet | 0.032808399 |
| Centimeters to Meters | 353 | 354 | centimeters-to-meters | 0.01 |
| Centimeters to Millimeters | 355 | 356 | centimeters-to-millimeters | 10.0 |
| Chains to Feet | 357 | 358 | chains-to-feet | 66.0 |
| Chains to Meters | 359 | 360 | chains-to-meters | 20.1168 |
| Cubic Centimeters to Cubic Inches | 361 | 362 | cubic-centimeters-to-cubic-inches | 0.0610237441 |
| Cubic Feet to Cubic Meters | 363 | 364 | cubic-feet-to-cubic-meters | 0.0283168466 |
| Cubic Meters to Liters | 365 | 366 | cubic-meters-to-liters | 1000.0 |
| Grams to Micrograms | 367 | 368 | grams-to-micrograms | 1000000.0 |
| Hectopascals to Pascals | 370 | 371 | hectopascals-to-pascals | 100.0 |
| Hectopascals to Millibars | 372 | 373 | hectopascals-to-millibars | 1.0 |
| Joules to Kilojoules | 374 | 375 | joules-to-kilojoules | 0.001 |
| Kilojoules to Joules | 376 | 377 | kilojoules-to-joules | 1000.0 |
| Micrograms to Grams | 378 | 379 | micrograms-to-grams | 1e-06 |
| Milligrams to Grams | 380 | 381 | milligrams-to-grams | 0.001 |
| Millibars to Pascals | 382 | 383 | millibars-to-pascals | 100.0 |
| Millimeters of Mercury to Pascals | 384 | 385 | millimeters-of-mercury-to-pascals | 133.322 |
| Millimeters of Mercury to Pascals | 384 | 385 | millimeters-of-mercury-to-pascals | 133.322 |
| Meters per second to Feet per second | 388 | 389 | meters-per-second-to-feet-per-second | 3.28084 |
| Meters per second to Miles per hour | 390 | 391 | meters-per-second-to-miles-per-hour | 2.23694 |
| Meters per second to Yards per second | 392 | 393 | meters-per-second-to-yards-per-second | 1.09361 |
| Micrograms to Milligrams | 394 | 395 | micrograms-to-milligrams | 0.001 |
| Micrometers to Millimeters | 396 | 397 | micrometers-to-millimeters | 0.001 |
| Milligrams to Micrograms | 398 | 399 | milligrams-to-micrograms | 1000.0 |
| Milliliters to Liters | 400 | 401 | milliliters-to-liters | 0.001 |
| Milliliters to Fluid Ounces | 402 | 403 | milliliters-to-fluid-ounces | 0.033814 |
| Millimeters to Centimeters | 404 | 405 | millimeters-to-centimeters | 0.1 |
| Millimeters to Inches | 406 | 407 | millimeters-to-inches | 0.0393701 |

## Backlog / To-Do
- [x] Acres to hectares
- [x] Acres to square feet
- [x] Amps to volts
- [x] Amps to watts
- [x] Angstroms to nanometers
- [x] Apothecary ounces to grams
- [x] ASCII to binary
- [x] Astronomical units to light years
- [x] Atmosphere to mmHg
- [x] Attograms to femtograms
- [x] Bar to Pascal
- [x] Bar to PSI
- [x] Becquerel to curie
- [x] Becquerel to rutherford
- [x] Binary to ASCII
- [x] Binary to decimal
- [x] Binary to hex
- [x] Bits to bytes
- [x] BTU to kilojoules
- [x] BTU/hour to watts
- [x] Bytes to bits
- [x] Calories to joules
- [x] Calories to kilojoules
- [ ] Candela to lumens
- [x] Carats to grams
- [x] Celsius to Fahrenheit
- [x] Centimeters to inches
- [x] CFS to CMS
- [x] CMS to CFS
- [x] Coulomb per kilogram to roentgen
- [x] Cups to milliliters
- [x] Curie to becquerel
- [x] Daltons to atomic mass units
- [x] Days to hours
- [x] Days to weeks
- [x] Days to years
- [ ] Decimal degrees to degrees, minutes, and seconds
- [ ] Decimal to binary
- [ ] Decimal to fraction
- [ ] Decimal to hex
- [ ] Decimal to octal
- [ ] Decibels to intensity
- [ ] Decibels to sound pressure level
- [ ] Decibels to volts
- [ ] Decibels to watts
- [x] Degrees to mils
- [x] Degrees to radians
- [ ] Degrees, minutes, and seconds to decimal degrees
- [x] Dynes to newtons
- [x] Ergs to joules
- [x] Fahrenheit to Celsius
- [x] Feet to meters
- [x] Feet per second to meters per second
- [ ] Femtograms to attograms
- [x] Fluid ounces to milliliters
- [x] Foot-pounds to newton-meters
- [ ] Fractions to decimals
- [x] Gallons per minute to liters per second
- [x] Gallons to liters
- [x] Gigabytes to megabytes
- [ ] Gigabytes to terabytes
- [x] Grains to grams
- [ ] Grams to apothecary ounces
- [ ] Grams to carats
- [ ] Grams to grains
- [x] Grams to milligrams
- [ ] Grams to moles (requires molar mass — see list 2 if chemical context unknown)
- [x] Grams to ounces
- [x] Grams to pennyweights
- [x] Grams to troy ounces
- [x] Gray to rad
- [x] Hectares to acres
- [ ] Hex to binary
- [ ] Hex to decimal
- [x] Horsepower to kilowatts
- [x] Hours to days
- [x] Hours to minutes
- [x] Inches of mercury to pascals
- [x] Inches of water to pascals
- [x] Inches to centimeters
- [x] Inches to millimeters
- [ ] Joules to calories
- [ ] Joules to ergs
- [ ] Kilocalories to kilojoules
- [ ] Kilograms to pounds
- [ ] Kilograms to slugs
- [ ] Kilojoules to BTU
- [ ] Kilojoules to kilocalories
- [ ] Kilometers per hour to miles per hour
- [ ] Kilometers to miles
- [ ] Kilometers to nautical miles
- [ ] Kilowatts to horsepower
- [ ] Kilowatts to tons of refrigeration
- [ ] Kilowatt-hours to megajoules
- [ ] Knots to miles per hour
- [ ] Light years to astronomical units
- [ ] Light years to parsecs
- [ ] Liters per second to gallons per minute
- [ ] Liters to gallons
- [ ] Liters to pints
- [ ] Liters to quarts
- [ ] Long tons to metric tons
- [ ] Lumens to candela
- [ ] Lumens to lux
- [ ] Lux to lumens
- [ ] Megabytes to gigabytes
- [ ] Megajoules to kilowatt-hours
- Batch 7 Generation (Length, Volume, Mass)
- [x] Draft implementation plan for 10 calculators (Centimeters, Cubic Feet, etc.)
- [x] Write and execute the Python generation API script.
- [x] Programmatically perform bidirectional math verification.
- [x] Update `calculators_list.md` and check off backlog tasks.
- Batch 9 Generation (Speed, Metric Divisions)
- [x] Draft implementation plan for 10 calculators (Meters/sec, Micrometers, Milliliters).
- [x] Write and execute the Python generation API script.
- [x] Programmatically perform bidirectional math verification.
- [x] Update `calculators_list.md` and check off backlog tasks.
- Batch 10 Generation (Time, Data, Flow)
- [ ] Draft implementation plan for 10 calculators (Minutes to Hours, Gigabytes to Megabytes, etc.)
- [ ] Write and execute the Python generation API script.
- [ ] Programmatically perform bidirectional math verification.
- [ ] Update `calculators_list.md` and check off backlog tasks.
- [ ] Meters per second to feet per second
- [ ] Meters per second to miles per hour
- [ ] Meters per second to yards per second
- [ ] Meters to feet
- [ ] Meters to yards
- [ ] Metric tons to long tons
- [ ] Metric tons to short tons
- [ ] Micrograms to milligrams
- [ ] Micrometers to millimeters
- [ ] Micrometers to nanometers
- [ ] Microns to angstroms
- [ ] Miles per gallon to kilometers per liter
- [ ] Miles per gallon to liters per 100 km
- [ ] Miles per hour to kilometers per hour
- [ ] Miles per hour to knots
- [ ] Miles per hour to meters per second
- [ ] Miles to kilometers
- [ ] Milligrams to grams
- [ ] Milligrams to micrograms
- [ ] Milliliters to cups
- [ ] Milliliters to fluid ounces
- [ ] Milliliters to tablespoons
- [ ] Milliliters to teaspoons
- [ ] Millimeters to inches
- [ ] Millimeters to microns
- [ ] Minutes to hours
- [ ] Minutes to seconds
- [ ] Nanograms to picograms
- [ ] Nanometers to micrometers
- [ ] Nautical miles to kilometers
- [ ] Newton-meters to foot-pounds
- [ ] Newtons to dynes
- [ ] Ohms to siemens
- [ ] Ounces to grams
- [ ] Ounces to pounds
- [ ] Pascal to atmosphere
- [ ] Pascals to inches of mercury
- [ ] Pascals to inches of water
- [ ] Pennyweights to grams
- [ ] Percent to PPM
- [ ] Pints to liters
- [ ] Pounds to kilograms
- [ ] Pounds to ounces
- [ ] Pounds to stones
- [ ] Pounds to tons
- [ ] PPI to DPI
- [ ] PSI to bar
- [ ] PSI to megapascals
- [ ] Rad to gray
- [ ] Rad/s to RPM
- [ ] Radians to degrees
- [ ] Rem to sievert
- [ ] Roentgen to coulomb per kilogram
- [ ] RPM to rad/s
- [ ] Rutherford to becquerel
- [ ] Seconds to milliseconds
- [ ] Seconds to minutes
- [ ] Siemens to ohms
- [ ] Sievert to rem
- [ ] Slugs to kilograms
- [ ] Sound pressure level to decibels
- [ ] Square centimeters to square inches
- [ ] Square feet to acres
- [ ] Square feet to square meters
- [ ] Square inches to square centimeters
- [ ] Square kilometers to square meters
- [ ] Square meters to square feet
- [ ] Square meters to square kilometers
- [ ] Square miles to square yards
- [ ] Square yards to square miles
- [ ] Stones to pounds
- [ ] Tablespoons to milliliters
- [ ] Teaspoons to milliliters
- [ ] Terabytes to gigabytes
- [ ] Terabytes to petabytes
- [ ] Tons of refrigeration to kilowatts
- [ ] Tons to pounds
- [ ] Torr to Pascal
- [ ] Troy ounces to grams
- [ ] Volts to amps
- [ ] Volts to decibels
- [ ] Watts to amps
- [ ] Watts to BTU/hour
- [ ] Watts to decibels
- [ ] Watts to horsepower
- [ ] Weeks to months
- [ ] Yards per second to meters per second
- [ ] Yards to meters
- [ ] Yoctograms to zeptograms
- [ ] Zeptograms to yoctograms