Growth Tools

Free tools to help you use data to improve your business.

A/B Significance Test

Determine whether your A/B tests are statistically significant.

Try Kissmetrics to get help with running your A/B test and check out our A/B testing documentation. Use this A/B Significance calculator to tell you whether your A/B test is statistically significant. Without this calculator, you can’t be confident that the changes you make will improve your conversions.

The number of visitors on this page was: The number of overall conversions was: Conversion rate:





Your results:

Variation “B” converted 33% better than Variation “A.” We are 99% certain that the changes inVariation “B” will improve your conversion rate. Your A/B test is statistically significant!