Calculator Suite

Choose a calculator to get started. All computations run locally in your browser.

Sample Size Calculator

Determine the required sample size for your A/B test. Start with your desired uplift and get instant answers.

Detect sample ratio mismatch issues in your experiment. Paste your data and get instant diagnostics.

Quantify the uplift between two variants and determine if the difference is statistically significant.

Estimate how long your experiment needs to run based on your traffic and desired sensitivity.

Project your experiment results to annual business impact with decay and seasonality adjustments.