Theoretical Yield Calculator
Calculate the maximum amount of product obtainable from a chemical reaction given the limiting reagent, molar masses, and stoichiometric coefficients.
Reaction Inputs
Example: N₂ + 3H₂ → 2NH₃ → reagent=3, product=2
Fill in the inputs and click Calculate to see results.
Theoretical Yield
—
grams
Yield in Moles
—
mol
Percent Yield
—
Actual / Theoretical × 100
Step-by-step Breakdown
Copied!
Summary
Calculate the maximum amount of product obtainable from a chemical reaction given the limiting reagent, molar masses, and stoichiometric coefficients.
How it works
- Enter the moles of the limiting reagent you have.
- Input the molar mass of the limiting reagent (g/mol).
- Input the molar mass of the desired product (g/mol).
- Set the stoichiometric coefficients from the balanced equation.
- Click Calculate to see the theoretical yield in grams and moles.
- Optionally enter your actual (experimental) yield to get percent yield.
Use cases
- Plan lab-scale synthesis reactions to estimate how much product to expect.
- Verify stoichiometric calculations for chemistry homework and exams.
- Determine limiting reagent impact on reaction efficiency.
- Calculate percent yield when comparing experimental to theoretical results.
- Scale reactions up or down by adjusting moles of limiting reagent.
- Cross-check mole-to-gram conversions in multi-step organic synthesis.
Frequently Asked Questions
Last updated: 2026-06-10 ·
Reviewed by Nham Vu