Free CRO tool

A/B Test Traffic Planner

Find out how many visitors you need to run a statistically valid test, and estimate how long it will take.

Baseline conversion rate Your current conversion rate

Expected uplift Minimum improvement to detect

Relative change in CVR+10%

Control 3.50%→Variant 3.85%

Confidence level Protection against false positives

Statistical power Chance of detecting a real improvement

Visitors required for test —

— per group · 2 groups

Number of variants 2 groups total

False positive rate—p-value threshold

False negative rate—miss rate

Minimum detectable effect+10%relative lift

Required Z-score—zα + zβ

Runtime estimator Daily visitors to the page

/ day

Enter your daily page visitors to estimate runtime.