Coefficient of variation calculator

Sample coefficient of variation = sample standard deviation ÷ mean × 100.

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Answer

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Sample coefficient of variation = sample standard deviation ÷ mean × 100.

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Formula and assumptions

Uses the n − 1 sample standard deviation. Meaningful comparisons require a ratio scale with a meaningful zero; near-zero means make this measure unstable.

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Automatic precision shows numbers to 12 significant digits. Thousands separators such as 1,000 are accepted; use a dot for decimals.

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Updated 2026-09-26

Using Coefficient of variation calculator

Sample coefficient of variation = sample standard deviation ÷ mean × 100.

Uses the n − 1 sample standard deviation. Meaningful comparisons require a ratio scale with a meaningful zero; near-zero means make this measure unstable.

Next: Basic calculator

A worked example

With sample observations = 2 4 6, the sample coefficient of variation (percent) is 50.

Before you use the result

Uses the n − 1 sample standard deviation. Meaningful comparisons require a ratio scale with a meaningful zero; near-zero means make this measure unstable.

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