Get count, sum, mean, median, mode, min, max, range, variance, standard deviation and quartiles for every numeric CSV column.. Summary Statistics Calculator is a free online tool from the ToolsRift Charts & Data Tools collection. It runs entirely in your browser — nothing to install, no signup, and your data never leaves your device.
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How to use Summary Statistics Calculator
Paste or load your CSV, pick sample or population for the deviation, and read the statistics table generated for every numeric column. Copy the results in one click.
Frequently asked questions
Which statistics are calculated?
For every numeric column you get the count of valid values, the sum, mean, median, mode, minimum, maximum, range, variance, standard deviation and the Q1, Q2 and Q3 quartiles with the interquartile range. Non-numeric columns are reported as text and skipped.
Is the standard deviation for a sample or a population?
You can choose. Sample standard deviation divides by n-1 and is the right default when your rows are a sample of something larger; population divides by n and is correct only when you hold every member of the group.
How are the quartiles computed?
Using the linear interpolation method on the sorted values, which is the same approach as spreadsheet QUARTILE functions, so the numbers match what Excel or Google Sheets would give you for the same column.
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