Unit Converter

Convert values between compatible UCUM units with precise calculations.

Conversion Input

Enter a value and units to convert between

Conversion Result

The converted value and calculation details

Enter values and units above to see the conversion result

Common Conversions

Click any example to load it into the converter

About Unit Conversion

UCUM unit conversion uses precise mathematical relationships between units. Only dimensionally compatible units can be converted.

  • Length units: m, cm, mm, in, ft, etc.
  • Mass units: kg, g, mg, lb, oz, etc.
  • Temperature units: Cel, degF, K
  • Pressure units: Pa, kPa, mm[Hg], atm
  • Concentration units: mg/dL, mmol/L, g/L