Academy:

AB Test Calculator

One test calculator to answer all your pre test analysis questions:

Pre-test analysis

What is the minimal detectible effect I can test for?
How long should I test for considering the effect?
What's the sample size for a test on this page?
Does confidence level affect my test duration?

Pre-Test Analysis

Does the test variant beat the original?
Does the test have the needed sample size?
Does the test have the needed duration?
What is the monetary ROI of the test variant?

What is the minimal detectible effect I can test for?
How long should I test for considering the effect?
What's the sample size for a test on this page?
Does confidence level affect my test duration?

Test page data

Weekly traffic (sessions or users)

Weekly conversions

Number of variants (including control)

CR, confidence level, and power

Baseline conversion rate (control) %

Confidence level

Statistical power %

Number of weeks running test

Minimal detectible effect (MDE)

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Visitors per variant

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