{
  "name": "AllUnitConversions conversion factors",
  "license": "CC BY 4.0",
  "source": "https://allunitconversions.com/unit-conversion-tables",
  "updated": "2026-06-16",
  "factors": [
    {"category":"length","unit":"millimeter","symbol":"mm","baseUnit":"meter","factorToBase":0.001,"notes":"exact SI derived unit"},
    {"category":"length","unit":"centimeter","symbol":"cm","baseUnit":"meter","factorToBase":0.01,"notes":"exact SI derived unit"},
    {"category":"length","unit":"meter","symbol":"m","baseUnit":"meter","factorToBase":1,"notes":"SI base unit"},
    {"category":"length","unit":"inch","symbol":"in","baseUnit":"meter","factorToBase":0.0254,"notes":"exact international inch"},
    {"category":"length","unit":"foot","symbol":"ft","baseUnit":"meter","factorToBase":0.3048,"notes":"exact international foot"},
    {"category":"length","unit":"yard","symbol":"yd","baseUnit":"meter","factorToBase":0.9144,"notes":"exact international yard"},
    {"category":"length","unit":"mile","symbol":"mi","baseUnit":"meter","factorToBase":1609.344,"notes":"exact international mile"},
    {"category":"pressure","unit":"pascal","symbol":"Pa","baseUnit":"pascal","factorToBase":1,"notes":"SI derived unit"},
    {"category":"pressure","unit":"kilopascal","symbol":"kPa","baseUnit":"pascal","factorToBase":1000,"notes":"SI derived unit"},
    {"category":"pressure","unit":"megapascal","symbol":"MPa","baseUnit":"pascal","factorToBase":1000000,"notes":"SI derived unit"},
    {"category":"pressure","unit":"bar","symbol":"bar","baseUnit":"pascal","factorToBase":100000,"notes":"defined as 100000 Pa"},
    {"category":"pressure","unit":"pound per square inch","symbol":"psi","baseUnit":"pascal","factorToBase":6894.757293168,"notes":"international avoirdupois pound-force per square inch"},
    {"category":"pressure","unit":"standard atmosphere","symbol":"atm","baseUnit":"pascal","factorToBase":101325,"notes":"standard atmosphere"},
    {"category":"pressure","unit":"torr","symbol":"Torr","baseUnit":"pascal","factorToBase":133.3223684211,"notes":"1/760 standard atmosphere"},
    {"category":"pressure","unit":"inch of mercury","symbol":"inHg","baseUnit":"pascal","factorToBase":3386.38815789,"notes":"at 0 C standard gravity"},
    {"category":"force","unit":"newton","symbol":"N","baseUnit":"newton","factorToBase":1,"notes":"SI derived unit"},
    {"category":"force","unit":"kilogram-force","symbol":"kgf","baseUnit":"newton","factorToBase":9.80665,"notes":"standard gravity"},
    {"category":"force","unit":"pound-force","symbol":"lbf","baseUnit":"newton","factorToBase":4.4482216152605,"notes":"international avoirdupois pound-force"},
    {"category":"power","unit":"watt","symbol":"W","baseUnit":"watt","factorToBase":1,"notes":"SI derived unit"},
    {"category":"power","unit":"kilowatt","symbol":"kW","baseUnit":"watt","factorToBase":1000,"notes":"SI derived unit"},
    {"category":"power","unit":"mechanical horsepower","symbol":"hp","baseUnit":"watt","factorToBase":745.699872,"notes":"mechanical horsepower"},
    {"category":"power","unit":"refrigeration ton","symbol":"RT","baseUnit":"watt","factorToBase":3516.8528420667,"notes":"12000 BTU per hour"},
    {"category":"energy","unit":"joule","symbol":"J","baseUnit":"joule","factorToBase":1,"notes":"SI derived unit"},
    {"category":"energy","unit":"kilowatt-hour","symbol":"kWh","baseUnit":"joule","factorToBase":3600000,"notes":"exact"},
    {"category":"energy","unit":"gigajoule","symbol":"GJ","baseUnit":"joule","factorToBase":1000000000,"notes":"SI derived unit"},
    {"category":"energy","unit":"gigawatt-hour","symbol":"GWh","baseUnit":"joule","factorToBase":3600000000000,"notes":"exact"},
    {"category":"volume","unit":"milliliter","symbol":"mL","baseUnit":"liter","factorToBase":0.001,"notes":"metric volume"},
    {"category":"volume","unit":"liter","symbol":"L","baseUnit":"liter","factorToBase":1,"notes":"accepted metric volume unit"},
    {"category":"volume","unit":"cubic meter","symbol":"m3","baseUnit":"liter","factorToBase":1000,"notes":"SI derived volume"},
    {"category":"volume","unit":"US cup","symbol":"cup","baseUnit":"liter","factorToBase":0.2365882365,"notes":"US customary cup"},
    {"category":"volume","unit":"US fluid ounce","symbol":"fl oz","baseUnit":"liter","factorToBase":0.0295735295625,"notes":"US customary fluid ounce"},
    {"category":"volume","unit":"US gallon","symbol":"gal","baseUnit":"liter","factorToBase":3.785411784,"notes":"US liquid gallon"},
    {"category":"radiation absorbed dose","unit":"gray","symbol":"Gy","baseUnit":"gray","factorToBase":1,"notes":"SI absorbed dose"},
    {"category":"radiation absorbed dose","unit":"milligray","symbol":"mGy","baseUnit":"gray","factorToBase":0.001,"notes":"SI absorbed dose"},
    {"category":"radiation absorbed dose","unit":"rad","symbol":"rad","baseUnit":"gray","factorToBase":0.01,"notes":"legacy absorbed dose"},
    {"category":"radiation equivalent dose","unit":"sievert","symbol":"Sv","baseUnit":"sievert","factorToBase":1,"notes":"SI equivalent dose"},
    {"category":"radiation equivalent dose","unit":"millisievert","symbol":"mSv","baseUnit":"sievert","factorToBase":0.001,"notes":"SI equivalent dose"},
    {"category":"radiation equivalent dose","unit":"rem","symbol":"rem","baseUnit":"sievert","factorToBase":0.01,"notes":"legacy equivalent dose"},
    {"category":"radiation equivalent dose","unit":"millirem","symbol":"mrem","baseUnit":"sievert","factorToBase":0.00001,"notes":"legacy equivalent dose"},
    {"category":"radiation activity","unit":"becquerel","symbol":"Bq","baseUnit":"becquerel","factorToBase":1,"notes":"SI activity"},
    {"category":"radiation activity","unit":"kilobecquerel","symbol":"kBq","baseUnit":"becquerel","factorToBase":1000,"notes":"SI activity"},
    {"category":"radiation activity","unit":"megabecquerel","symbol":"MBq","baseUnit":"becquerel","factorToBase":1000000,"notes":"SI activity"},
    {"category":"radiation activity","unit":"curie","symbol":"Ci","baseUnit":"becquerel","factorToBase":37000000000,"notes":"defined as 3.7e10 Bq"},
    {"category":"electric current","unit":"ampere","symbol":"A","baseUnit":"ampere","factorToBase":1,"notes":"SI base unit"},
    {"category":"electric current","unit":"milliampere","symbol":"mA","baseUnit":"ampere","factorToBase":0.001,"notes":"SI derived unit"},
    {"category":"electric current","unit":"microampere","symbol":"uA","baseUnit":"ampere","factorToBase":0.000001,"notes":"SI derived unit"}
  ]
}