✓ Instant math✓ Client-side privacy✓ Free forever

Free Statistics Calculator

Q: Is this using population or sample formulas?

Variance and standard deviation are computed as population values (divide by n).

Mean, median, mode, standard deviation, and more — instantly.

Data (comma separated)

Results

Count9

Sum225

Mean25

Median25

ModeNone

Variance76.2222

Std Dev8.7305

Min12

Max40

Range28

Q116.5000

Q332.5000

IQR16

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How to use Statistics Calculator

Three steps. Instant results.

📋

Step 1

Paste or type numbers separated by commas or spaces.

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Step 2

Choose population or sample formulas.

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Step 3

Review central tendency, dispersion, and quartile metrics.

How Statistics Calculator works

This tool validates each input token, sorts the dataset, and computes descriptive statistics. Variance supports population (divide by n) and sample (divide by n-1) modes. Q1 and Q3 use the median-of-halves method, with the overall median excluded from odd-sized halves.

Why use this Statistics Calculator?

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Population and sample variance modes

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Median-of-halves quartiles

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Invalid-value warnings

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Calculates 13 descriptive metrics

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100% private and runs offline

Frequently asked questions

What statistical metrics does this calculate?

Count, sum, mean, median, mode, population variance, population standard deviation, min, max, range, Q1, Q3, and IQR.

How should I format my input data?

Enter numbers separated by commas, spaces, or new lines. Non-numeric text is ignored.

Is this using population or sample formulas?

Choose population (divide by n) or sample (divide by n-1). Quartiles use the median-of-halves method.

Can I use decimals or negative numbers?

Yes. The calculator accepts decimals and negative values.

Is my data sent to a server?

No. All calculations run locally in your browser.

Does it work offline?

Yes. After the page loads, it works without internet.

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