Statistics & probability

Geometric mean calculator

Average positive multiplicative values using logarithms.

Geometric mean calculator
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Up to 50,000 values. No thousands separators. Absolute values up to 1 trillion; non-zero values must be at least 1e-100 in magnitude.

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A clear answer. Here’s how.

Geometric mean = exp(mean(log(x))). Requires strictly positive values. Useful for compatible multiplicative quantities; growth percentages must first be represented as positive factors (for example, 5% becomes 1.05). Uses logarithms to avoid multiplying all values directly.

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Worked example

A fixed demonstration, separate from the values you enter above.

Values, separated by commas or new lines
1, 2, 4, 8

Example result

Geometric mean
2.82842712475
Count
4

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