1. Enter values
Use consistent units and the requested inputs.
A/B test conversions — Rate calculator
Calculate the a/b test conversions rate as qualifying visitors divided by all eligible visitors, multiplied by 100. Define the numerator, denominator and measurement period consistently. This is a descriptive rate, not a causal conclusion.
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Clear contextNotes explain how to interpret the estimate.
visitors
visitors
Estimated result
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Guide
How to use this calculator
2. Review the result
Use the main result and breakdowns as a planning estimate.
3. Check context
For regulated topics, verify current local rules before acting.
Reviewed calculation details
A/B test conversions — Rate calculator: method and worked example
What the calculation does
Within the same reporting period, divide the number of converted visitors in the chosen variant by the number of eligible exposed visitors in that variant, then multiply by 100. Both counts refer to visitors; the eligible total must be positive and qualifying count cannot exceed it.
Example using the prefilled values
Converted visitors in the chosen variant: 80 visitors; eligible exposed visitors in that variant: 100 visitors. Result = 80 / 100 × 100 = 80%.
How to interpret the result
80% means 80 qualifying observations per 100 eligible observations under the stated counting definitions. It does not establish causality.
Assumptions and limitations
Enter nonnegative whole-number counts; a positive eligible total is required and the qualifying count cannot exceed it. Use the same variant and observation window; do not combine assigned and unexposed users or interpret this rate as statistical significance.
Input
Inputs used by this calculator
Review the values and units used by this calculator before calculating.
Qualifying: converted visitors in the chosen variant (visitors)visitorsEligible total: eligible exposed visitors in that variant (visitors)visitors