Geometric Mean Calculator
Enter positive numbers separated by commas, spaces or new lines.
How this calculator works
The geometric mean multiplies all the numbers and takes the nth root, where n is how many numbers there are. It suits growth rates, ratios and anything that compounds. It is always less than or equal to the arithmetic mean.
Frequently asked questions
When do I use a geometric mean?
For percentage growth, investment returns, and ratios that multiply.
Can it include zero or negatives?
No. All values must be positive.
How is it different from the average?
The ordinary average adds values. The geometric mean multiplies them.
