LTV : CAC Calculator

Measure the ratio that determines whether your growth spend builds value or burns it: customer lifetime value against acquisition cost, plus payback period.

Customer Lifetime Value (contribution)
LTV : CAC Ratio
CAC Payback Period
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All calculation happens in your browser — nothing you enter is sent to us or stored. Results are estimates for orientation, not an appraisal, offer, or financial advice.

How to use this calculator

  1. AOV: trailing-twelve-month revenue ÷ total orders.
  2. Contribution margin: what's left after COGS, shipping, fulfillment, and payment fees — as a % of revenue. (Not gross margin; include the cost to deliver.)
  3. Orders per customer per year and lifespan: pull from cohort data if you have it; conservative estimates if you don't.
  4. Blended CAC: total marketing spend ÷ new customers acquired, same period.

Reading the ratio

The conventional benchmark: 3:1 is healthy, below 2:1 means growth spend is destroying value once overhead joins the party, and above 4–5:1 often signals you're under-investing in growth. Payback period matters just as much for cash flow — a brand with 3:1 LTV:CAC but an 18-month payback can still strangle itself on working capital. Sub-12-month payback is the comfortable zone for most DTC brands.

Why buyers care about this number

Retention economics are the first thing we screen in diligence — roughly 60% of DTC revenue industry-wide comes from returning customers, and the gap between average (≈28% repeat rate) and great (40%+) brands is the single biggest multiple driver we see. The full data is in Retention Is the New Acquisition, and you can see how retention feeds your multiple in the valuation estimator.

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