Stoichiometry Calculator

Find moles, grams, and molecules for reactants and products. Identify the limiting reagent and calculate percent yield.

Mole Ratio Converter

Convert between moles, grams, and molecules using a balanced equation

Balanced Equation (e.g. 2H₂ + O₂ → 2H₂O)
Use stoichiometric coefficients as mole ratios below.
Reactant / Product A
Reactant / Product B
Step-by-Step Solution

Limiting Reagent Finder

Find which reagent is limiting and the theoretical yield

Example: 2H₂ + O₂ → 2H₂O
Enter the stoichiometric coefficients and moles available for each reagent, plus the product coefficient and molar mass.
Reagent 1
Reagent 2
Product
Limiting Reagent
Theoretical Yield
Theoretical Yield
Steps

Percent Yield Calculator

% Yield = (Actual ÷ Theoretical) × 100

Theoretical Yield
Actual Yield (measured)
Percent Yield
0%50%100%
Step-by-Step