LTV:CAC Ratio Calculator
Compare customer lifetime value against customer acquisition cost.
Formula
LTV:CAC Ratio = Customer Lifetime Value ÷ Customer Acquisition Cost
There's no single universal "good" ratio — what's sustainable depends on your margins, how quickly you recover acquisition cost, and how much capital you have to fund growth in the meantime. Treat any specific benchmark you read elsewhere as a rule of thumb, not a rule.
Worked Example
A customer with a $240 profit-based LTV and a $80 CAC gives a ratio of $240 ÷ $80 = 3:1 — lifetime value is three times acquisition cost.