AB Test Calculator

Calculate statistical significance and plan your A/B tests

Control (A)

Visitors

Conversions

Conversion Rate: 0.00%

Variant (B)

Visitors

Conversions

Conversion Rate: 0.00%

Current test duration (days)

Average daily visitors

90% 95% 99%

Enter your test data

–

P-Value

–

Z-Score

–

Improvement

–

95% Confidence Interval

–

Additional Days Needed

Enter your test data to see the statistical analysis and interpretation of your A/B test results.

Sample Size Calculator

Baseline conversion rate (control)

Minimum detectable effect (MDE)

Confidence level

Statistical power

Number of variants (including control)

Required sample size per variant: —

Duration Calculator

Baseline conversion rate (control)

Minimum detectable effect

Number of variants

Number of daily visitors (total)

Test duration: —

Minimum Detectable Effect (MDE)

Baseline conversion rate

Sample size per variant

Confidence level

Statistical power

Minimum detectable effect: —