Stoichiometry Calculator
Calculate limiting reactants, remaining amounts, and one theoretical product yield using your balanced coefficients and molar masses.
A QUICK WALKTHROUGH
How to use this tool
- Enter the balanced reaction and every reactant with its coefficient, amount, unit, and molar mass.
- Enter one target product with its coefficient and molar mass; confirm the input assumptions.
- Calculate the limiting reactant, remaining quantities, and theoretical yield.
Theoretical product yield
Reaction extent = minimum(reactant mol / coefficient). Product mol = extent × product coefficient. Mass = mol × molar mass.
Balanced reaction (reference only)
Assumes complete conversion, pure reactants, and a single reaction with no losses or side reactions. The equation is a reference label only: no balancing or chemistry validation, element database, experimental advice, or actual yield prediction. A zero reactant amount gives zero yield.
GOOD TO KNOW
Common questions
Does it balance the equation?
No. You provide and confirm the balanced coefficients and molar masses. All calculation stays in your browser.