Coefficient of Variation
The coefficient of variation describes dispersion relative to a positive mean. It can compare proportional variability on ratio scales.
Coefficient of Variation
Statistics · 2 inputs
How to use this calculator
- Enter standard deviation in units.
- Enter positive mean in units.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Choose the reference quantity before interpreting the number. A ratio, a percentage and a percentage-point difference may use the same observations while answering different questions. For recorded data, keep the original values beside the summary so an unexpected result can be traced back to its inputs.
It is unstable near zero and usually unsuitable for scales with arbitrary origins, such as Celsius temperatures.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
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