Unit Conversion

Convert numbers between two units quickly and precisely

Amount of Substance Converter

Unit Conversion

Convert amount of substance: mole, millimole, micromole, and kilomole

Amount of substance is stated in mole (mol), the SI unit, as well as its multiples and fractions from nanomole (nmol) to kilomole (kmol). It is the central quantity in stoichiometric calculations.

Key conversion factors:

  • 1 mole (mol) = 1,000 millimoles (mmol) = 1,000,000 micromoles (µmol)
  • 1 kilomole (kmol) = 1,000 moles
  • 1 micromole (µmol) = 1,000 nanomoles (nmol)

Applications:

  • Stoichiometry: calculating reaction equations and yields
  • Lab work: preparing solutions of a defined concentration
  • Process engineering: substance balances in chemical production

The amount-of-substance converter converts values quickly and precisely across all common orders of magnitude. To calculate amount of substance, mass, and molar mass (m = n · M), use our stoichiometry calculator.

Frequently asked questions about converting amount of substance

1 mole (mol) equals 1,000 millimoles (mmol) and 1,000,000 micromoles (µmol). These prefixes follow the usual SI scheme (milli = 1/1,000, micro = 1/1,000,000).

Kilomole (kmol, 1 kmol = 1,000 mol) is mainly used in industrial process engineering when calculating large substance balances in chemical production, for which individual mole figures would be too small.

Not directly with this converter – it only converts between mole units. To calculate mass from amount of substance and molar mass (m = n * M), use our stoichiometry calculator instead.