A/B Testing Significance & Conversion Rate Calculator
Analyze A/B split testing campaigns and digital marketing experiments. Calculates baseline and variation conversion rates, relative uplift, standard error, two-tailed or one-tailed z-score, p-value, and provides clear winner declarations across 90%, 95%, and 99% confidence thresholds.
A/B Testing Significance Calculator
Evaluate statistical significance, conversion uplift, p-value, and confidence levels for split tests and marketing campaigns.
Campaign Data
Variant B is a Statistically Significant Winner!
With 95% confidence, we can reject the null hypothesis. The observed difference is very unlikely to be random noise.
Test Metrics & Evidence
How to Use A/B Testing Significance & Conversion Rate Calculator
Enter Variant A Data
Input total visitors/samples and conversions for your control group (A).
Enter Variant B Data
Input visitors and conversions for your test variation (B).
Select Confidence Threshold
Set confidence to 90%, 95% (standard), or 99% to view the winner declaration and p-value.
Frequently Asked Questions
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