LTV:CAC ratio calculator

Enter your average revenue per customer, gross margin, customer lifespan and acquisition cost to see customer lifetime value (LTV), the LTV:CAC ratio and how many months it takes to earn the CAC back. Nothing is uploaded.

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Average revenue per customer / month (ARPU)

Gross margin (%)

Average customer lifespan (months)

Customer acquisition cost (CAC)

—Customer lifetime value (LTV)

—LTV:CAC ratio

—CAC payback (months)

Everything runs in your browser. No upload, no sign-up.

How it works

STEP 1

Enter the revenue

Average revenue per customer per month and your gross margin %.

STEP 2

Add lifespan & CAC

How long a customer stays in months, and what it costs to win one.

STEP 3

Read the ratio

Get LTV, the LTV:CAC ratio and CAC payback. Around 3:1 is healthy. All private.