AB Test Calculator
Stop guessing which variant "probably won." This free A/B test calculator uses a standard two-proportion z-test to tell you whether the difference in conversion rates is statistically significant.
The number of visitors on this page was:
The number of overall conversions was:
Conversion rate
A
9.5%
B
11.0%
Your test results
Test "B" converted 11% better than Test "A".
I am 44% certain that the changes in Test "B" will improve your conversion rate.
Unfortunately, your results are not statistically significant yet.
This calculator uses a one-tailed two-proportion z-test.