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Customer Acquisition Cost Calculator

Free Calculator

Turn your marketing and sales spend and the customers it won into a clear CAC β€” instantly and privately.

100% private

Runs in your browser β€” no numbers leave your device.

Your numbers

$

Total marketing spend in the period.

$

Sales team + tooling cost for the same period.

New customers acquired in that period.

Customer acquisition cost (CAC)

$50

What you pay to win one new customer β€” total spend Γ· new customers.

Total spend

$25,000

Marketing + sales cost combined.

How it works

1

Add marketing spend

Enter everything spent on ads, content and channels for the period.

2

Add sales spend

Include sales salaries, commissions and tooling for the same window.

3

Enter new customers

Count only customers newly acquired in that period.

4

Read your CAC

Total spend and cost per new customer update live.

Lower your CAC with better screenshots

Reverze rebuilds your App Store screenshots into higher-converting creative, so the same spend wins more customers.

How to calculate customer acquisition cost with a customer acquisition cost calculator

Customer acquisition cost (CAC) is what you pay, on average, to win one new customer. You add up everything spent on marketing and sales in a period, then divide by the number of new customers that spend produced. If you spent $25,000 and gained 500 customers, your CAC is $50. It is one of the most important numbers in any growth model, because a business only compounds when a customer is worth more over their lifetime than they cost to acquire.

There is no single 'good' CAC β€” it only means something next to lifetime value (LTV). A healthy LTV:CAC ratio is often cited around 3:1, so lowering CAC or raising LTV both strengthen your economics. One of the fastest levers is conversion: App Store creative and ASO lower CAC by converting more of the exact same traffic into installs. That is exactly what Reverze does β€” rebuilding higher-converting screenshots so every marketing dollar buys more customers.

Frequently asked questions

How do I calculate customer acquisition cost?
Add your total marketing and sales spend for a period, then divide by the number of new customers acquired in that same period. For example, ($20,000 marketing + $5,000 sales) Γ· 500 customers = $50 CAC. This calculator does it instantly.
What costs should I include in CAC?
Include all customer-facing marketing and sales costs for the period: ad spend, content, agency fees, sales salaries and commissions, plus the tools that support them. Keep the date range consistent between spend and the new customers it produced.
What is a good CAC?
There is no universal benchmark β€” CAC only matters relative to lifetime value. Many teams aim for an LTV:CAC ratio around 3:1 and a payback period under 12 months. Compare against your own history and unit economics rather than a single number.
How can I lower my CAC?
Improve conversion so the same traffic yields more customers, tighten targeting, and lean on organic channels. For apps, higher-converting App Store screenshots and ASO cut CAC directly β€” Reverze rebuilds your creative to convert more of the traffic you already pay for.