Mole Fraction Calculator

Enter moles for two or more components and verify that all mole fractions sum to one.

—Mole fractions sum to 1.

How to use this Mole Fraction Calculator

Calculate mole fractions and mole percentages for a multicomponent mixture. Enter your values above and the result is calculated directly in your browser. No account is required.

Fast answer, clear inputs

This tool is built around one job: give the answer quickly without forcing a signup or hiding the result. Related tools are linked nearby when the next calculation or conversion is useful.