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CAC and LTV Calculator

Calculate CAC and LTV for unit economics.

How to use

  1. Enter the total marketing spend and the number of customers acquired in the same period.
  2. Enter the average monthly revenue per customer and the average customer lifetime in months.
  3. See the CAC, LTV, and the LTV/CAC ratio that tells you whether your unit economics are healthy.

About this tool

CAC (Customer Acquisition Cost) is how much you spend to win one customer; LTV (Lifetime Value) is how much that customer is worth over their entire relationship. The LTV/CAC ratio is the core metric for sustainable growth.

An LTV/CAC ratio above 3 is generally healthy — each real spent on acquisition returns at least three in revenue. Below 1 means you are spending more to acquire a customer than they will ever pay you.

The calculation assumes a flat monthly revenue and a fixed lifetime. In practice, churn rates vary and revenue per customer may grow or shrink — use cohort data for a more accurate picture.

Frequently asked questions

Does my data leave my browser?

No. Everything runs locally in JavaScript on your device — nothing is transmitted or stored.

Is this financial advice?

No. This is an educational tool for estimates only. Real financial decisions depend on fees, taxes and personal circumstances — consult a qualified professional.

Which official tables does the tool use?

The tool uses the latest publicly available rates and tables. You can verify the values against the official sources linked on the page.

cac ltv calculadora finanças online grátis brasil

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