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CAC Calculator

Calculate your Customer Acquisition Cost (CAC) and payback period from your sales and marketing spend. See where you stand against SaaS benchmarks and model the impact of reducing CAC by 20%.

Your Numbers

Sales + marketing spend (period) ($)

New customers acquired (same period)

ARPU — avg revenue per user/month ($)

Results

CAC

—

Payback Period

— mo

What If You Cut CAC by 20%?

With 20% lower CAC, your payback period drops from to .

Enter your numbers above to see the impact.

How CAC Is Calculated

CAC = Total sales + marketing spend ÷ New customers acquired
Payback period = CAC ÷ ARPU (months)

Include all sales and marketing costs in the spend figure — salaries, tools, ad spend, events. The payback period tells you how long a new customer takes to recoup their acquisition cost.

Also useful: LTV Calculator · ARPU Calculator

All SaaS Metrics

Abner calculates this automatically from your Stripe data. Start your free 14-day trial — no credit card required.