Acceleration Calculator
Average acceleration = (final velocity − initial velocity) / time.
Open toolStandard Deviation Calculator
Calculate standard deviation and variance for a number list. Up to 1,000 values, separated by commas or whitespace.
Free to useNo sign-upRuns in your browser
Enter your details
Enter the inputs, then select Calculate result.
Your result
Enter your details
Result will appear here
How Standard Deviation Calculator works
Calculate standard deviation and variance for a number list.
Up to 1,000 values, separated by commas or whitespace. Repeated observations count separately. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding. Sample mode requires at least two values; population mode divides by n and sample mode by n − 1.
How to use Standard Deviation Calculator
Follow the labelled inputs.
Enter numbers
Replace the example with numbers. The field labels specify the expected format and units.
Input and settings
Check the remaining inputs
Set data model. Up to 1,000 values, separated by commas or whitespace.
Tool result
Run, review and save
Select Calculate result. Review the calculated result, then copy it or download the result text.
Review the details
Examples and uses for Standard Deviation Calculator
Check the supplied example
The starting example produces Standard deviation: 2; Variance: 4. Calculate standard deviation and variance for a number list.
Use your own inputs
Read the labels for numbers and data model. Up to 1,000 values, separated by commas or whitespace.
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 and variance for a number list.
Up to 1,000 values, separated by commas or whitespace. Repeated observations count separately. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding. Sample mode requires at least two values; population mode divides by n and sample mode by n − 1.
Supported input and limits
Check the stated scope before you run it.
Up to 1,000 values, separated by commas or whitespace. Repeated observations count separately. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding. Sample mode requires at least two values; population mode divides by n and sample mode by n − 1.
The input stays in this browser. Copy result and Download save the same displayed text.
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Standard Deviation Calculator: common questions
Answers about using Standard Deviation Calculator and understanding its results.
Which inputs does this tool accept?
Up to 1,000 values, separated by commas or whitespace. Repeated observations count separately. Finite real numbers only. Display uses up to 12 significant digits; binary floating-point arithmetic can introduce rounding. Sample mode requires at least two values; population mode divides by n and sample mode by n − 1.
Can I copy or download the result?
Yes. Copy result copies the displayed text, and Download saves the same result as a text file. Calculations run in your browser without an account.
Calculate result with your input
Check the calculated result, then copy or download it.