Sample Size Calculator

About Sample Size Calculator

The Sample Size Calculator is used to calculate the needed sample size.

Miniwebtool

If you like Sample Size Calculator, please consider adding a link to this tool by copy/paste the following code:

<a href="https://miniwebtool.com/sample-size-calculator/">Miniwebtool Sample Size Calculator</a>

Automatic Mode

Confidence Level:
Confidence Interval:	%
Population:	Leave blank if you don't know population size or it's very big.