LTV to CAC Ratio Calculator
Last updated: July 2026
Calculate customer lifetime value, acquisition cost ratio, gross-margin payback period and maximum CAC for a target ratio.
Estimated LTV to CAC ratio
—
- Estimated gross-margin customer LTV: —
- Gross-margin CAC payback period: —
- Maximum CAC at target ratio: —
- Gross profit per customer per month: —
On this page
Quick summary: Calculate customer lifetime value, acquisition cost ratio, gross-margin payback period and maximum CAC for a target ratio. Enter the requested values, calculate, review the result, and compare more than one realistic scenario before making a decision.
Read the complete guide
What this calculator estimates
Calculate customer lifetime value, acquisition cost ratio, gross-margin payback period and maximum CAC for a target ratio. It is designed for fast planning and comparison in the United States. The output is an estimate, not a binding quote, approval, tax determination, insurance offer or professional recommendation.
How to use it
Enter the requested values using a single consistent time period and currency. Select Calculate, review the headline result and supporting figures, then change one assumption at a time to compare another scenario.
How the calculation works
Gross profit per customer is monthly revenue multiplied by gross margin. A simple churn-based lifetime value divides monthly gross profit by monthly churn, then compares LTV with CAC.
Important limitations
This simplified formula assumes stable churn and margin. Cohort retention, expansion, discounting, onboarding, support costs and channel mix can change true unit economics.
Frequently asked questions
Is the result exact?
No. It is a planning estimate based on the assumptions entered.
Can I compare different scenarios?
Yes. Change one input at a time so you can see which assumption changes the result.
Does the calculator store my inputs?
The calculation runs in the browser and does not require an account. Avoid entering unnecessary confidential information.