Correlation Coefficient Calculator
Find the Pearson correlation coefficient of paired observations.
Open toolCoefficient Of Variation Calculator
Calculate standard deviation as a percentage of a positive mean. Standard deviation must be nonnegative and mean positive.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Calculate.
Your result
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Result will appear here
How Coefficient Of Variation Calculator works
Calculate standard deviation as a percentage of a positive mean.
Standard deviation must be nonnegative and mean positive. CV comparison is meaningful for ratio-scale measurements with a nonzero natural origin. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
How to use Coefficient Of Variation Calculator
Follow the labelled inputs.
Enter standard deviation
Replace the example with standard deviation. The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
Set positive mean. Standard deviation must be nonnegative and mean positive.
Tool result
Run, review and save
Select Calculate. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Coefficient Of Variation Calculator
Check the supplied example
The starting example produces 20%. Calculate standard deviation as a percentage of a positive mean.
Use your own inputs
Read the labels for standard deviation and positive mean. Standard deviation must be nonnegative and mean positive.
Record a reviewed result
Copy the calculated result into your notes. Keep the formula and assumptions with it if someone else needs to reproduce the calculation.
How to read the result
Read the units and assumptions with the output.
Calculate standard deviation as a percentage of a positive mean.
Standard deviation must be nonnegative and mean positive. CV comparison is meaningful for ratio-scale measurements with a nonzero natural origin. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
Supported input and limits
Check the stated scope before you run it.
Standard deviation must be nonnegative and mean positive. CV comparison is meaningful for ratio-scale measurements with a nonzero natural origin. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
The input stays in this browser. Copy result and Download save the same displayed text.
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Open toolCoefficient Of Variation Calculator: common questions
Answers about using Coefficient Of Variation Calculator and understanding its results.
What assumptions and input limits apply?
Standard deviation must be nonnegative and mean positive. CV comparison is meaningful for ratio-scale measurements with a nonzero natural origin. Finite real inputs; output uses up to 12 significant digits. Floating-point results may be rounded.
How can I save the output?
Use Copy result to copy the displayed text, or Download to save it as a text file. The tool runs in your browser and does not require an account.
Calculate with your input
Check the calculated result, then copy or download it.