Unit Economics Calculator

Updated October 31, 2026

In shortInvestors look at LTV to CAC and payback months. Enter your numbers to see both, plus how many customers you need to break even.

Unit economics calculator

Use monthly figures for one customer or one unit sold. Leave churn at 0 for one-time purchases.

Average revenue per customer per month ($)Gross margin (%)Cost to acquire one customer, CAC ($)Monthly churn (%)Fixed costs per month ($)Purchases per customer (one-time sales)

Unit economics show whether each customer makes you money. Investors and lenders look at lifetime value, acquisition cost and payback early, so know yours before you pitch.

The measures

LTV: gross profit per customer over their lifetime.
CAC: the cost of winning one customer.
Payback: months of gross profit needed to earn back CAC.

See also evaluate your business model and the glossary.

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