Decision calculator
LTV:CAC Ratio Calculator
Compare lifetime value with acquisition cost, find the maximum CAC for your target ratio, and stress-test the ratio in an LTV × CAC sensitivity grid.
Modeled result
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Results update as you change the inputs.
Methodology and assumptions
LTV:CAC = lifetime value ÷ acquisition cost. Maximum CAC = LTV ÷ target ratio. CAC payback = CAC ÷ (monthly revenue × gross margin). The sensitivity grid varies LTV and CAC by ±40% because both inputs are estimates. The 3:1 target is a commonly cited heuristic, not a rule.
Currency outputs are rounded to the nearest minor currency unit.
Pricing last verified:
Frequently Asked Questions
What does the LTV:CAC Ratio Calculator calculate?
Compare lifetime value with acquisition cost, find the maximum CAC for your target ratio, and stress-test the ratio in an LTV × CAC sensitivity grid.
How accurate is the LTV:CAC Ratio Calculator?
It is a planning estimate based on the inputs, formula, assumptions, and sources shown on this page. Actual prices, invoices, taxes, discounts, and outcomes can differ.
Which pricing source does the LTV:CAC Ratio Calculator use?
The calculator links to Stripe customer economics guidance as its official source. The displayed pricing or reference data was last verified on 2026-10-01.
Are calculator inputs saved or sent to analytics?
Inputs are processed in your browser. Calculator values are not included in analytics events.