A/B Test Calculator
Check if your A/B test results are statistically significant.
Variant A (Control)
visitors
conversions
Variant B (Test)
visitors
conversions
%
Usually 95% or 99%.
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⏳ Not Yet Significant
Uplift
+0.00%
B outperforms A
0.00%
Confidence
0.0000
p-value
Control (A)
0.00%conversion rate
Variant (B)
0.00%conversion rate
Not enough evidence yet
The p-value of 0.0000 is above the 5% threshold. Continue collecting data.
Documentation
How It Works
This calculator uses a two-proportion z-test to determine if the difference in conversion rates between A and B is statistically significant.
Formula
Frequently Asked Questions