Separate numbers with commas, spaces,
tabs, or new lines.
0 values
Calculation type
Sample divides the sum of squared deviations by n − 1.
Sample standard deviation
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Enter values to see your result.
Variance
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Mean
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Count
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Explore Your Results
Open any feature for more detail.
Only one panel appears at a time.
Data Distribution
Dots display individual observations for small
datasets. Larger datasets use a histogram.
The marker shows the mean and the shaded area
represents mean ± one standard deviation.
DataMeanMean ± 1 SD
Enter data to see its distribution.
Step-by-Step Solution
Calculate a dataset to see the worked solution.
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#
Value (x)
x − Mean
(x − Mean)²
Additional Statistics
These descriptive statistics provide
extra context for your dataset.
Export & Display Precision
Change how many decimals are displayed.
Calculations keep their full available precision.
CSV includes your calculated statistics and
the complete deviation table, even when
the on-screen table is shortened.
Results are calculated locally in your browser.
Sample standard deviation is undefined for a single
observation. The input is not sent to a server by
this widget. Enter unformatted numbers; commas act
as separators rather than thousands markers.
