Free CAC Calculator

Add all sales costs and marketing costs for a period, then divide by the number of new customers acquired in that same period. The most common mistake is mismatching the time window: spending this month often closes customers next month, which can make CAC look artificially high in high-growth phases.

Using a trailing three-month or rolling average smooths those timing gaps. This calculator keeps the formula clean. You set the period, you match the inputs.

Include paid media, content production, events, tools and software subscriptions, outbound sequences, agency and contractor fees, and the fully-loaded compensation of everyone in sales and marketing. The most often overlooked items are sales engineer time, demo environments, and the cost of free trials.

Excluding these routinely understates true CAC by 20–40% for teams with complex sales motions. Most investors and operators benchmark against fully-loaded CAC, so it is worth building the habit early.

Many SaaS benchmarks cite 12 months as the target, but the right payback period depends heavily on your gross margin, expansion motion, and how early customers start paying full price. A 12-month payback at 40% gross margin is much harder to sustain than 18 months at 80% gross margin.

High-velocity PLG teams often need payback under 6 months to fund growth without heavy external capital, while enterprise teams with strong NRR can tolerate 24 months. Use the payback field here alongside your LTV calculator to see the full picture.

CAC payback measures how many months of gross profit it takes to recover what you spent to acquire a customer. If your gross margin is 80%, only 80 cents of every ARPU dollar goes toward recovering that cost. The rest goes to cost of goods.

A lower gross margin means recovery takes longer even if ARPU stays the same. This is why comparing CAC across SaaS and services companies is misleading without normalizing for gross margin first.

LTV:CAC compares how much value a customer generates over their lifetime against what it cost to acquire them. A ratio of 3:1 is the most-cited SaaS benchmark, but it is a starting point, not a rule.

Early-stage companies in fast-growing markets sometimes run 2:1 deliberately to fund expansion. More mature companies often target 5:1 or higher.

The ratio only makes sense alongside retention rate and NRR. A high ratio with a short average contract length is not the same as one with strong multi-year retention.

Interactive demos let prospects self-qualify and experience product value before they ever talk to a rep, which compresses the sales cycle and reduces the number of discovery calls needed per closed deal. Supademo customers report an average 28% reduction in CAC after deploying demos across their website, outbound sequences, and paid campaigns.

RB2B eliminated 61 hours of sales calls in their first 30 days by replacing manual demos with automated product experiences. If the biggest driver of your CAC is sales headcount and long cycles, self-serve product education is often the highest-leverage lever.

See how teams deploy demos across the funnel at sales enablement use cases.

Yes. Supademo's CAC calculator is completely free and runs entirely in your browser. Nothing is stored or sent to any server. No sign-up required.