How long should you run the test?

The calculator below allows you to calculate maximum duration (in days) for which the test should be run. If within this duration no winning combination is found, it can be easily concluded that there is no combination which beats the control (and hence test can be stopped). Even though exact test duration depends on a lot of external factors, entering basic information about your test will give you a rough idea of the duration.

Existing conversion rate (%) %
Expected improvement in conversion rate (%) %
Number of combinations [what?]
Average number of daily visitors
Percent visitors included in test

Total number of days to run the test: X days

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