Use the free A/B Test Calculator on ToolVexa to compare the conversion rates of two versions, A and B, from visitors and conversions.
How to Use
Enter visitors and conversions for A and for B, then press Calculate.
Formula in Plain Words
Conversion rate is conversions divided by visitors times 100. The difference is rate B minus rate A in percentage points, and relative uplift is that difference divided by rate A times 100.
Worked Example
For A with 100 conversions from 1,000 visitors and B with 130 from 1,000, rate A is 10.0%, rate B is 13.0%, the difference is 3.0 percentage points, the uplift is 30.0%, and the winner is B.
FAQs
Is this a significance test?
No. This compares rates only and does not test statistical significance.
What if the rates are equal?
The winner is shown as neither, because neither version is ahead.
Can I use it for clicks or sign-ups?
Yes, as long as conversions and visitors use the same definition for both versions.