Confidence Interval Calculator

About Confidence Interval Calculator

The Confidence Interval Calculator is used to calculate the confidence interval.

Miniwebtool

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

<a href="https://miniwebtool.com/confidence-interval-calculator/">Miniwebtool Confidence Interval Calculator</a>

Automatic Mode

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