CAC Calculator — Customer Acquisition Cost (Fully Loaded)

Most teams measure the wrong CAC

The formula is simple: divide acquisition spend by customers acquired. But "acquisition spend" is where everyone goes wrong. A team running paid ads might count $50,000 in ad spend and report a CAC of $500 on 100 new customers. The truth is messier: add your sales team's fully loaded cost ($20,000 for salaries, quota carry, CRM), marketing operations ($8,000 in tools and contractors), and customer success onboarding ($12,000) — that's $90,000 total, or $900 per customer. The real CAC is 1.8× the ad-spend number.

Fully-loaded means every dime that touched acquisition

This calculator includes marketing spend (ads, agencies, freelancers, martech subscriptions) and sales cost (team salaries, commissions, sales engineering, CRM tooling) for a single period — month, quarter, whatever you're measuring. Most teams under-report by only counting ad spend. The real number is usually 2–3× higher once you add the people costs. If that makes your CAC look terrible against benchmarks, that's not a problem with the metric — it's real cash leaving your account.

Comparing CAC to LTV tells you if growth is sustainable

A single CAC number is incomplete. If your CAC is $500 and your LTV (customer lifetime value) is $2,000, you can acquire at scale. If CAC is $500 and LTV is $600, growth kills you — you need to fix unit economics before hiring more salespeople. Use the LTV Calculator to find your LTV, then sanity-check the ratio: a 3:1 LTV:CAC ratio is healthy; below 1:1 and you're unprofitable.

Out of scope: CAC payback and cohort survival

This calculator tells you what you paid per customer. It doesn't tell you how long they stick around (cohort retention) or how fast you recoup that cost in profit (CAC payback period). Both matter enormously. See the CAC Payback Period Calculator to know how many months of gross profit it takes to repay the acquisition cost.