Empirical Formula Calculator

Find the empirical formula of a compound from percent composition or mass data. Enter element percentages or masses.

Input Type *

Number of Elements *

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Empirical Formula

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Calculation Breakdown

Step-by-step empirical formula determination

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Empirical Formula

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Simplest ratio

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Molar Mass

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g/mol

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Elements

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Count

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Mole Ratios

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Simplified

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Empirical Formula Steps

Key concepts for finding empirical formulas

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Empirical Formula Tips

Understanding empirical formulas

🧪 Chemical Disclaimer: This empirical formula calculator determines the simplest whole-number ratio of atoms in a compound. Percentages should add to 100%. Results are for educational purposes.