Stoichiometry Calculator

Добавлено 2026-08-29Обновлено 2026-10-03

Balance a reaction and convert a known reactant or product amount into moles and grams of another species using stoichiometric coefficients.

✓ Runs locally in your browser✓ No account required✓ Deterministic formula-based calculation

Chemical equation

Known species formula

Known amount

Known unit

Target species formula

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Target amount

—

Target mass

—

Mole ratio

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Results are calculation aids. Verify assumptions and laboratory requirements before operational use.

Об этом инструменте

The equation is balanced first, then the coefficient ratio converts the known amount into the target amount.

Common uses

stoichiometric calculatormole ratio calculatorgrams to grams stoichiometryreaction stoichiometry

Как это работает

1Enter the requested chemistry values, formula or equation.
2Check units and leave a field blank only when the tool is designed to solve for an unknown.
3Run the calculation and review the result, formula and supporting breakdown.

Does this calculation run on a server?

No. The calculation runs locally in your browser with JavaScript.

Can I use the result directly in laboratory work?

Use it as a calculation aid and verify reagent form, purity, constants, assumptions and your laboratory SOP before operational use.