Coefficient of Variation Calculator
Enter the standard deviation and mean of a dataset to calculate the coefficient of variation.
Coefficient of Variation Calculator
Calculate the coefficient of variation (CV) — a standardized measure of relative variability, expressed as a percentage of the mean.
This calculator provides an estimate for general informational purposes only. It is not a substitute for professional financial, mechanical or engineering advice.
The coefficient of variation expresses a dataset's standard deviation as a percentage of its mean, allowing fair comparison of variability between datasets measured on different scales.
Example
- With the default values shown above, this calculator returns: Coefficient of Variation ≈ 20.00.
Frequently Asked Questions
What is the formula?
CV % = (Standard Deviation ÷ Mean) × 100.
Why use CV instead of standard deviation alone?
Standard deviation alone doesn't account for scale, making it hard to compare variability across datasets with very different means. CV expresses variability relative to the mean, making such comparisons meaningful.