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Calixo

Geometric Mean Calculator

Find the geometric mean of two or three numbers.

Inputs

Saved Scenarios

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Geometric Mean

6.0000

Spark says

How it's calculated

Formula

GM=x1×x2×⋯×xnnGM = \sqrt[n]{x_1 \times x_2 \times \cdots \times x_n}
n
— Number of values

What is the Geometric Mean Calculator?

The geometric mean multiplies a set of numbers together and takes the nth root — unlike the arithmetic mean, it's appropriate for averaging ratios, percentages and growth rates.

How to use it

  1. 1 Enter two numbers, or three if needed.
  2. 2 Leave the third number at 1 to compute a two-number geometric mean.

Worked examples

4 and 9

Geometric mean is 6.

Try it

Frequently asked questions

When should I use geometric mean instead of arithmetic mean?

Use geometric mean when averaging rates of change, ratios, or growth percentages — for example, averaging investment returns across multiple years. Arithmetic mean can overstate average growth in those cases.