Enter the number of conversions with design A and the number of conversions with design B to calculate the A/B test ratio.

A/B Test Formula

The following formula is used to calculate the percentage change between two designs A and B.

A/B = (B-A) / A *100

  • Where A/B is the percentage change from A to B.
  • A is the number of conversions from design A
  • B is the number of conversions from design B

A/B Test Definition

An A/B test is a direct comparison between the performance of two different designs or setups. This is usually used in marketing and design, but can also be used in any field.

A/B Test Example

How to calculate A/B test results?

  1. First, determine the results of design A.

    Measure the total conversions or results from the first design.

  2. Next, determine the results of design B.

    Measure the total conversions of design B under the same conditions as design A.

  3. Finally, calculate the change.

    Calculate the change from A to B using the equation above. A negative value will indicate a negative change in conversion.

FAQ

What is an A/B test?

An A/B test is a measure of the change in performance between two different designs or situations, often dictated as A and B.

a/b test calculator
a/b test formula