Statistics Calculator
One data set per line - mean, median, mode, harmonic & geometric mean, min/max, range, variance, standard deviation, sum of squares, sum and count; variance and standard deviation follow Statistics Type: population divides by n, sample by n-1
Statistics Type:
Decimals:
Max groups:
Centre & Means (one row per group)
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| No. | Quantity | Sum | Average | Median | Mode | Harmonic mean | Geometric mean |
|---|
Spread & Extremes (one row per group)
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| No. | Quantity | Min | Max | Range | Sum of squares | Variance | Standard Deviation |
|---|
Introduction to the tool and how to use it
Math statistics calculator: computes 13 basic measures in one pass — mean, median, mode, harmonic mean, geometric mean, maximum, minimum, range, variance, standard deviation, sum of squares, total sum, and count.
Note: numbers are separated by any non-digit character such as commas, spaces, or tabs, and only digits are extracted; blank lines and lines without numbers are ignored, and the report states how many lines were skipped. Guardrails: up to 20000 numbers per line and 500 lines per run; excess is truncated automatically with a notice. Harmonic and geometric means require all-positive data (geometric mean allows 0); otherwise a dash is shown; with a single value, sample variance also shows a dash. Values are computed in double precision, so beyond 15 significant digits precision is lost.
How it differs from other tools on the site: this one targets multiple datasets with batch basic measures; for standard deviation alone use the standard deviation calculator; for quartiles, IQR, skewness, kurtosis, coefficient of variation, Shannon entropy, T-statistic, and Z-scores use the statistical measures calculator; for how often each value appears use number frequency statistics.
Note: numbers are separated by any non-digit character such as commas, spaces, or tabs, and only digits are extracted; blank lines and lines without numbers are ignored, and the report states how many lines were skipped. Guardrails: up to 20000 numbers per line and 500 lines per run; excess is truncated automatically with a notice. Harmonic and geometric means require all-positive data (geometric mean allows 0); otherwise a dash is shown; with a single value, sample variance also shows a dash. Values are computed in double precision, so beyond 15 significant digits precision is lost.
How it differs from other tools on the site: this one targets multiple datasets with batch basic measures; for standard deviation alone use the standard deviation calculator; for quartiles, IQR, skewness, kurtosis, coefficient of variation, Shannon entropy, T-statistic, and Z-scores use the statistical measures calculator; for how often each value appears use number frequency statistics.
How to use
- Paste one dataset per line; several groups can be calculated at once, for example
2, 4, 4, 4, 5, 5, 7, 9. - Choose the variance / standard deviation basis: population divides by n, sample divides by n-1; then adjust decimal places as needed.
- Click Calculate; the first table shows central tendency and means, the second shows spread and extremes, and results can be copied in one click or exported as CSV.
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