Stoichiometry Calculator

Free, instant stoichiometry calculator with step-by-step solutions, transparent formulas, and verification.

Quick answer

Stoichiometry converts between mass and moles using a balanced chemical equation. The reactant with the smaller available mole-to-coefficient ratio limits the theoretical product yield.

Formula and calculation method

moles = mass / molar mass; product moles = limiting moles × (product coefficient / reactant coefficient); mass = moles × molar mass.

Use the interactive Toolune page

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