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Customer Acquisition Cost (CAC) Calculator
See if you're paying too much to win each customer
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About this tool
If you don\'t know your CAC, you\'re flying blind. Worse — if your LTV:CAC ratio is below 1, you lose money on every new customer and only profitable churn keeps you alive.
This calculator computes CAC from marketing + sales spend ÷ new customers, then layers on the two metrics that matter: LTV:CAC ratio and payback period in months. Color-coded against the SaaS-grade benchmarks (≥3:1 healthy, ≤12 months payback).
How to use it
- 1 Enter monthly marketing spend (ads, content, tools, agency).
- 2 Enter monthly sales spend (salaries, CRM, demos).
- 3 Enter new customers acquired per month.
- 4 Enter average customer lifetime value (LTV).
- 5 Read CAC, LTV:CAC ratio (≥3:1 is healthy), and payback months (≤12 is healthy).
What you get
- Three numbers, full picture — CAC alone is meaningless. Ratio + payback is what investors and founders track.
- Color-coded benchmark — Output highlights green/red against SaaS-grade thresholds, no interpretation needed.
- Combines with CLV — Pair it with the Customer Lifetime Value calculator for a complete unit economics view.
CRM Business Hub Do it for every case with CRM Business Hub
Calculate one CAC — or watch CAC live across every channel with attribution and LTV in Service Manager.
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