Statistics Calculator - Mean, Median, Mode, Range, Variance & Std Deviation

Paste any data set to see mean, median, mode, range, variance, and standard deviation instantly

🔒 100% in-browser🆓 Free forever⚡ No sign-up
Count
6
Sum
108
Mean
18
Median
15.5
Mode
no mode
Min
4
Max
42
Range
38
Std deviation (sample, n−1)
13.49073756
Std deviation (population, n)
12.31530213
Variance (sample)
182
Variance (population)
151.6666667
6 valid numbers parsed. Use sample stats when your data is a sample from a larger population; use population stats when the data is the entire population.
Estimates only. Results are generated by generalised formulas from the inputs you provide and are for informational purposes only. They are not financial, tax, legal, medical, or professional advice, and do not account for your individual circumstances, jurisdiction, taxes, fees, or health conditions. Verify important figures with a qualified professional. By using this tool you agree to our Terms & Disclaimer.

How it works

  1. 1
    Paste your data

    Numbers separated by commas, spaces, tabs, or newlines - mixed separators are fine.

  2. 2
    Read the summary

    Central tendency (mean, median, mode), spread (range, variance, std deviation), and totals appear instantly.

  3. 3
    Use the right form

    Sample stats (n−1) when your data is a subset of a larger population. Population stats (n) when it's the full population.

About Statistics Calculator - Mean, Median, Mode, Range, Variance & Std Deviation

Free statistics calculator. Paste any set of numbers (separated by commas, spaces, tabs, or newlines) and see count, sum, mean, median, mode, min, max, range, sample and population variance, and sample and population standard deviation. Perfect for stats homework, quick data analysis, and spreadsheet sanity checks. Runs entirely in your browser. Statistics Calculator - Mean, Median, Mode, Range, Variance & Std Deviation on 712 Tools runs entirely inside your browser using modern JavaScript APIs - no server ever sees your data. That means instant results, complete privacy, and no upload limits.

Whether you need to paste any data set to see mean, median, mode, range, variance, and standard deviation instantly for a debugging session, a quick sanity check, or a production incident, this tool is free to use as many times as you need. There are no watermarks, no sign-up, and no ads inside the tool itself.

Frequently asked questions

Sample vs population - which do I use?

If your numbers are the entire population you care about, use population (divide by n). If they're a sample and you want to estimate the population, use sample (divide by n−1). Excel STDEV.S = sample; STDEV.P = population.

What if there's no mode?

If every value appears exactly once, the tool reports “no mode.” If two or more values tie for the highest count, they are all listed.

Is my data uploaded?

No. All calculations run entirely in your browser.

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