Moles to Grams Calculator

Enter a chemical formula and amount in moles or millimoles to calculate molar mass, grams, and approximate particle count.

Chemical formula

Amount in moles

——

—Molar mass

—Moles

—Grams

—Particles (approx.)

How to use this Moles to Grams Calculator

Convert moles of a compound to grams using its chemical formula. 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.