A/B Test Significance Calculator
Determine if your A/B test results are statistically significant. Enter visitor and conversion counts for both variants to see confidence levels, lift, and a clear verdict.
AControl Variant
Conversion rate: 3.00%
BTest Variant
Conversion rate: 3.70%
Results are promising but not yet significant
Collect more data to reach 95% confidence.
Variant A Rate
3.00%
Variant B Rate
3.70%
Lift
+23.3%
Confidence
94.8%
Statistical Details
Z-Score1.9451
P-Value0.0518
Test MethodTwo-proportion z-test (two-tailed)
Significance Thresholdp < 0.05 (95% confidence)
How to Read These Results
- • 95%+ confidence = statistically significant. The winner is real, not chance.
- • 90–95% confidence = promising but inconclusive. Collect more data.
- • Below 90% = no clear winner. The difference may be random noise.
- • Lift shows how much better the winning variant performed relative to the control.
A/B test your smart links
Create multiple Filmcane smart links with different posters, descriptions, or platform ordering. Track which variant drives more clicks and conversions.
Start Testing for Free