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Free calculators for product teams

Model growth, size an experiment, check a result, rank your ideas. Each tool runs in your browser: nothing to sign up for, nothing stored, and a link that reopens exactly what you see.

Growth and revenue

SaaS growth calculatorProject customers and MRR from sign-ups, activation and churn, and see which lever moves growth most.LTV:CAC calculatorCustomer lifetime value, LTV:CAC ratio and CAC payback from four numbers.Funnel conversion calculatorFind the step where most people leak, and what fixing each step is worth at the end of the funnel.

Experiments

A/B test sample size calculatorHow many visitors each version needs, and how many days your traffic takes to get there.A/B test significance calculatorIs the winner real? A p-value, a confidence interval and a verdict in plain words.

Prioritization

RICE score calculatorScore ideas by reach, impact, confidence and effort, rank them, and export the list.

Customer feedback

NPS calculatorNet Promoter Score with its margin of error, and whether a change since last time is real.