Product & growth calculators

23 free calculators, no login — type a number, see what it means.

See how many visitors become paying customers and where the drop is.

Check whether acquiring a customer pays back, before scaling spend.

Find out how long an experiment must run before the result can be trusted.

See whether existing customers grow or shrink your revenue over a period.

See how many users from one sign-up group are still active after a day, a week and a month

Turn survey answers into a score from -100 to 100.

Balance growth against profitability with a single score.

See how often monthly users come back each day.

Revenue per subscriber, how many leave, and how long a subscriber stays.

Turn revenue and cost into margin, and see the price that gives a target margin.

Three everyday shop metrics from one set of counts.

The three ratios insurers use to judge underwriting results.

Two core bank ratios: how much income goes on running costs, and how much of the loan book

The three building blocks of insurance pricing, from claims and exposure.

How many policies renew, and the premium lost when they do not.

Four common bank ratios from balance sheet figures.

Three growth efficiency measures used by software investors.

Judge a marketing channel by what a customer costs and what the spend returns.

Turn ad impressions, clicks and conversions into the standard rates and unit costs.

The standard rates for one email send.

How much is spent on R&D and how much revenue comes from recent products.

Work out how many months of cash remain at the current burn.

Compare two values and the steady growth rate between them.