Calculate population standard deviation.
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Coefficient of Variation Calculator
Quick answer
If values are 12, 15, 15, 18, 22, 27, 31, the coefficient of variation is 34.8807%.
Coefficient of variation: CV (%) = sample standard deviation ÷ mean × 100.
Enter your values
- 12
- 15
- 15
- 18
- 22
- 27
- 31
7 values
Coefficient of Variation
34.8807%
The standard deviation shown as a percentage of the mean, so spread can be compared fairly across data sets with different scales.
Moderate
Coefficient of Variation: 34.8807%, Moderate. Scale from 0 to 100 with 3 bands: Low 0 to 33.3333, Moderate 33.3333 to 66.6667, High 66.6667 to 100.
Moderate
Your Coefficient of Variation of 34.8807% falls in the “Moderate” band. That is around the middle of the scale.
33.3333 – 66.6667You are here
More in Dispersion
All Dispersion calculatorsCalculate population variance.
DispersionOpenCalculate sample variance.
DispersionOpenCalculate sample standard deviation.
DispersionOpenCalculate mean.
DescriptiveOpenCalculate median.
DescriptiveOpen
About the Coefficient of Variation Calculator
The coefficient of variation (CV) expresses the standard deviation as a percentage of the mean, so you can compare the spread of data sets measured in different units or on different scales. A lower CV means steadier, more consistent values.
For 12, 15, 15, 18, 22, 27 and 31, the mean is 20, the sample standard deviation is about 6.98 and the CV is about 34.9%.
Coefficient of variation
CV (%) = sample standard deviation ÷ mean × 100
Things to keep in mind
- It only makes sense when the mean is not close to zero.
- It works for ratio data such as prices, weights or times, not for temperatures in Celsius.
- Compare the CV of two products or investments to see which is more consistent.
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What is Coefficient of Variation?
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What Affects Your Coefficient of Variation
Your coefficient of variation depends on the values below.
Values
Changing your values changes your coefficient of variation.
Example Result
Here's what you can expect from a coefficient of variation calculation:
- Coefficient of Variation
- 34.8807%
Frequently Asked Questions
- How to calculate coefficient of variation?
- Fill in values in the Coefficient of Variation Calculator above and your coefficient of variation is calculated instantly. Change any value to see how the result responds.
- What does an example coefficient of variation calculation look like?
- If values are 12, 15, 15, 18, 22, 27, 31, the coefficient of variation is 34.8807%.
- Is this calculator free to use?
- Yes — every calculator on this site is completely free, with no sign-up or account required.
- How accurate is this calculator?
- It uses the standard formula and calculates on our server for every request, so results are precise for the values you enter.
- Is my data saved anywhere?
- No. Nothing you enter is stored or sent anywhere unless you choose to share a link with your values included.
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