Testing Significance Calculator


A/B/n Split Test Significance Calculator

Use this calculator to see if your optimization test results are statistically accurate.

A split test must reach a minimum of 95% statistical accuracy to be reliable. Statistical accuracy is used so that you can be sure your winning variation hasn’t outperformed the losing variations because of luck. Simply enter your data into the calculator below and find out the statistical accuracy of your split tests.

# Visitors
Conversions
Control
Variation 1

The winning variation is
the at a % confidence level.

You need 95% or more to trust the test results.


"Trinity has truly been a blessing for ShopRate. Talk about striving to do the very best on a daily basis. Their analysts are extremely smart and aggressive marketers. Craig and his team are professional and accountable. These guys have all the online bases covered and we look forward to growing a lucrative business with Trinity by our side. "Rick Spano | President, ShopRate

More testimonials >