Geometric Mean Calculator
Summarize positive multiplicative observations with a log-based mean.
Your result
MATHEnter your values and select calculate.
On this page How it works & practical examples
How to use the Geometric Mean Calculator
Use positive factors or measurements whose ratios are meaningful. For growth rates, first convert each rate into its positive growth factor rather than entering signed percentages directly.
The calculation
Worked example
The geometric mean of 2 and 8 is 4, compared with arithmetic mean 5.
Assumptions and limits
Zero and negative inputs are rejected. The output is a mean of the entered positive values, not an annualized investment return or an arithmetic average.
Common questions
Which inputs should I use?
Use positive factors or measurements whose ratios are meaningful. For growth rates, first convert each rate into its positive growth factor rather than entering signed percentages directly.
What does the result exclude?
Zero and negative inputs are rejected. The output is a mean of the entered positive values, not an annualized investment return or an arithmetic average.