Benchmark calculator
Turn a StatFacts range into projected rates and a rough A/B test sample size. See our planning guide for context.
From insight
View insight β
Projected outcome
New rate range
β
Absolute change
β
Midpoint
β
Use midpoint as test MDE β
Sample size (2 variants)
Per variant
β
Total visitors
β
Treatment rate at MDE
β
Planning input onlyβnot a forecast. Benchmarks set ambition; your context and power analysis set feasibility.
Always check sample_context on the source insight before citing numbers.