A/B test significance calculator
Enter visitors and conversions for control and variant to get the lift and a significance indication.
Result
Control 1,000 visitors / 50 conversions vs variant 1,000 / 65 conversions: the tool reports the lift and whether it passes a basic significance threshold.
Example
Check whether an A/B test result is statistically significant from visitors and conversions per variant in your browser. Values stay on your device.
Control 1,000 visitors / 50 conversions vs variant 1,000 / 65 conversions: the tool reports the lift and whether it passes a basic significance threshold.
Processed locally in your browser.
Methodology
Uses a two-proportion z-test on the conversion rates. Reports lift and a p-value indication; not a substitute for full experiment design.
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