Molar mass converter

Convert molar mass units for chemistry and molecular-weight calculations. Use the interactive converter to enter your own value and select any supported pair in this family.

Popular conversions

Use the interactive converter to enter your own value and select any supported pair in this family.

Supported units (7)

Each row links to the live converter. The factor column uses the family’s stated base unit for linear families; for specialized reciprocal or numeral systems, use the live converter and the family-specific explanation.

Source unitFactor to base unitTool
kilogram per mole
kg-mol
1Convert this unit ↗
gram per mole
g-mol
0.001Convert this unit ↗
milligram per mole
mg-mol
1e-06Convert this unit ↗
gram per millimole
g-mmol
1Convert this unit ↗
kilogram per kilomole
kg-kmol
0.001Convert this unit ↗
pound per pound-mole
lb-lbmol
0.001Convert this unit ↗
unified atomic mass unit times Avogadro constant
u-mol
0.001000000001Convert this unit ↗

Important note

Unit standards, historical definitions and approximations can vary. Cooking volume-to-mass conversions depend on the ingredient; currencies require an exchange rate; sizing systems may be discrete; and logarithmic quantities such as decibels need purpose-built formulas rather than a linear scale.

For laboratory, medical, aviation, engineering or other safety-critical work, verify the definitions and standards that apply to your use case.