Geometric mean
Geometric mean: use observations. Review the formula, worked example and calculation steps.
Inputs
Use the units shown—
Enter your values and select Calculate.
Formula & explanation
GM = exp[Σ ln(x)/n]
Variables & units
- Observations
- comma separated
Worked example
The geometric mean of 2 and 8 is 4.
Assumptions
Uses positive observations; do not apply directly to signed percentage returns.
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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