# STDEV

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## Content



This function returns the standard deviation for a set of numbers.

## Syntax

STDEV(*value1*,*value2*,...)

## Arguments

Each argument can be a cell, a cell range, a float value, or an integer value. This function can have up to 255 arguments.

## Remarks

The standard deviation is a measure of how widely values are dispersed from the average value.
The standard deviation is calculated using the "non-biased" or "n–1" method.
The equation for calculating the standard deviation is:
![STDEV Equation](https://cdn.mescius.io/document-site-files/images/0ed25d3e-6b2a-4cf0-8f1b-7ed5ab18cf12/artwork/func-stdev.png)
where x is the value and n is the number of values.
This function assumes that its arguments are a sample of the population. If your data represents the entire population, then compute the standard deviation using the [STDEVP](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsRtoS/FunctionSTDEVP) function.
This function differs from the STDEVA, which allows text or logical values as well as numeric values.

## Data Types

Accepts numeric data for all arguments. Returns numeric data.

## Examples

`STDEV(A1,B2,C3,D4,E5,F6)`
`STDEV(A1:A9)`
`STDEV(R1C2,R3C4,R4C5,R7C2)`
`STDEV(95,89,73,87,85,76,100,96,96)` gives the result 9.3422576382

## Version Available

This function is available in product version 1.0 or later.

## See Also

[AVEDEV](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionAVEDEV) \| [AVERAGE](/spreadnet/docs/latest/online-formula/formulas-functionsall/formulas-functsAtoC/FunctionAVERAGE) \| [Statistical Functions](/spreadnet/docs/latest/online-formula/formulas-overview/formulas-functs/formulas-functtypes/formulas-functsstats)