A/B test reliability calculator

Calculate sample size

This calculator will help you determine how many people you’ll need for a reliable result. Use it when testing open rates, click rates, conversion rates, and more.

Sample size, number of people
Total:Total:
5 400
Per segment:Per segment:
2 700
Reliability
Statistical power
Sample size,
number of people
Total:
5 400
Per segment:
2 700

Post-test evaluation

This will help you understand which variant showed the best results and whether the difference between them can be considered statistically significant.

Number
of conversions
Sample size
Conversion
Confidence
interval
Group A
Number of conversions
Sample size
Conversion
0,0 %
Confidence interval
0,0 – 0,0 %
Group B
Number of conversions
Sample size
Conversion
0,0 %
Confidence interval
0,0 – 0,0 %
Group C
Number of conversions
Sample size
Conversion
0,0 %
Confidence interval
0,0 – 0,0 %
Group D
Number of conversions
Sample size
Conversion
0,0 %
Confidence interval
0,0 – 0,0 %
Group E
Number of conversions
Sample size
Conversion
0,0 %
Confidence interval
0,0 – 0,0 %
Conclusion
Reliability
Conclusion