Grams to Moles Calculator

Convert between grams, moles, and molar mass using n = m / M with switchable calculation modes.

This calculator solves the core stoichiometry relationship n = m / M, where n is amount in moles, m is mass in grams, and M is molar mass in g/mol.

Pick a calculation mode to solve for moles, mass, or molar mass from the other two values. It is useful for quick lab and homework conversions.