Calculatrice

Calculatrice LTV:CAC

Le ratio LTV:CAC est l’un des contrôles les plus utiles pour scaler. Si la valeur vie client est trop proche du CAC, la croissance devient fragile.

Especially important for SaaS, subscription, and repeat-purchase businesses.Useful for deciding whether paid acquisition can scale sustainably.Helps you weigh retention work against raw acquisition spend.
Formule

Formule

LTV:CAC = Customer Lifetime Value / Customer Acquisition Cost

A 3:1 ratio is often used as a rough target, but the right threshold depends on margins, payback period, and growth stage. Use the calculator to test realistic retention assumptions.

Définitions des métriques

Ce que le ratio peut signifier

RatioInterpretationNext step
Below 1:1Acquisition costs more than the customer is worthFix retention or acquisition before scaling
1:1 to 2:1Potentially viable, but thinImprove onboarding, upsells, or conversion quality
3:1 or higherOften healthy for scalingWatch payback and saturation as spend rises
Guide

À utiliser avec

  • Payback period, to see how long it takes to recover spend.
  • ROAS, to see the short-term revenue signal.
  • Retention and churn, because a high CAC can still work with strong lifetime value.
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FAQ

Questions fréquentes

Why does LTV:CAC matter?

It tells you whether growth is actually compounding or just buying short-term revenue.

Is 3:1 always the right goal?

No. Some businesses can scale profitably below 3:1 if payback is fast and margins are strong.

Should I use gross or net LTV?

Use the version that best matches your margin structure and decision process, and stay consistent.