Growth Metric Calculators

3 live calculators · free, instant & private

ROI calculatorTotal & annualized ROI, real return after inflation, A-vs-B verdict.Open calculator →CAC & LTV calculatorCAC, LTV, LTV:CAC ratio and payback period with a verdict.Open calculator →NPV & IRR calculatorNet present value, IRR, payback and profitability indexOpen calculator →

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Guides for growth metrics

Worked examples and the reasoning behind these calculators. Browse all guides →

ElectricalHow Many Solar Panels Do I Need to Power a House?Aug 6, 2026 · 5 min read FinanceWhat $500 a Month Becomes After 30 YearsAug 2, 2026 · 5 min read BusinessROI vs Annualized Return: Why a 60% Gain Can Be MediocreJul 31, 2026 · 5 min read BusinessHow to Calculate Your Break-Even PointJul 21, 2026 · 4 min read MathHow to Calculate Percentage Increase and DecreaseJul 7, 2026 · 5 min read

About these calculators

Return on investment is easy to state and easy to misread — a 40% return over four years is not comparable to a 40% return over one. The ROI calculator annualises the figure so investments of different lengths can be judged against each other honestly, and shows the payback period alongside it.

The CAC and LTV calculator covers the ratio that decides whether growth is worth buying: what a customer costs to acquire against what they are worth over their lifetime, and how many months it takes to recover the spend.

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