A/B Test Calculator
> Statistical significance assessment (Z-Test).
Control Group (A)
Test Group (B)
NO SIGNIFICANCE
Confidence Level: 84.73%
Conversion A
10.00%
Conversion B
12.00%
FAQ
What is statistical significance?↓
Statistical significance shows how likely it is that A/B test result differences are not due to chance. A 95% confidence level is typically required.
What is a p-value?↓
A p-value is the probability that the observed result occurred by chance when there is no real difference. The lower the p-value, the more significant the result.
How many visitors do I need for an A/B test?↓
It depends on your current conversion rate and expected effect size. Use our sample size calculator for precise calculations.