Chemistry

Empirical Formula Calculator

Lets users compute and verify empirical formula instantly with formula, steps and examples — no manual math.

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Your result
Mole ratio A : B
2.00 : 1

Mole ratio A:B = 2.00 : 1 — round to whole numbers for the empirical formula.

As decimal
2

About this calculator

Empirical formula = simplest whole-number mole ratio of elements. Divide each element's moles by the smallest, then round (×2, ×3 if needed to clear near-halves like 1.5).

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