// multi-utility computation suite · offline · instant · precise
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dev.feature-flag-rollout Calculator
Calculates feature flag rollout percentage, statistical power for A/B testing, and the time needed to reach significance at a given traffic level. A 50/50 split reaches statistical significance fastest — smaller treatment groups require more time to detect the same effect size.
Inputs
User Base
Reference formula or conversion factor shown for context.
Rollout Pct
Reference formula or conversion factor shown for context.
Days
Reference formula or conversion factor shown for context.
Error Rate
Amount per unit of time or per unit quantity. Check the denominator before interpreting.
Results
days to full rollout
Reference formula or conversion factor shown for context.
users on day 1
Sample size or count used in the calculation.
min sample for
Sample size or count used in the calculation.
stat significance day
The value at the specified point or condition.
rollout per day
Reference formula or conversion factor shown for context.
recommendation
Suggested action or value based on the computed results and applicable best-practice guidelines.