SaaS Metrics

CAC CALCULATOR

Blended CAC, payback, LTV:CAC ratio, revenue impact, What-If scenarios, and industry benchmarks.

Costs & Customers

Monthly Marketing Spend ($)

Monthly Sales Spend ($)

New Customers (per month)

Avg Revenue Per Customer ($/mo)

Avg Customer Lifespan (months)

What-If

Test how changes affect your unit economics

History

CAC Metrics

$0.00

Blended CAC

$0.00

Marketing CAC

$0.00

Sales CAC

0 mo

CAC Payback

$0.00

Customer LTV

0.0:1

LTV:CAC Ratio

—

Revenue Impact

Projected revenue from new customers at current CAC

Monthly New Rev

Annual New Rev

Monthly Cost

Monthly Gross

Industry Benchmark

Frequently Asked Questions

How does the Cac Calculator work?

Simply enter your values into the input fields and click calculate. The tool processes everything instantly in your browser using optimized formulas â€” no data is sent to any server.

Is the Cac Calculator free to use?

Yes, it is completely free with no hidden fees, subscriptions, or usage limits. No sign-up or account required.

How accurate are the results?

The Cac Calculator uses standard mathematical formulas to ensure accurate results. Always double-check critical calculations.

Is my data safe when using Cac Calculator?

Absolutely. All calculations happen locally in your browser. Your data never touches any server and is never stored or tracked.

What is customer acquisition cost (CAC)?

CAC is the total cost to acquire a new customer. Add all marketing and sales costs for a period, then divide by the number of new customers gained. It tells you how much you spend on average to win each customer.

What is a good LTV:CAC ratio?

A ratio above 3:1 is considered healthy. Between 1:1 and 3:1 means you are acquiring customers profitably but have room to improve. Below 1:1 means you spend more to acquire a customer than they will ever pay you â€” which is unsustainable.

How is CAC payback period calculated?

CAC payback = blended CAC divided by average monthly revenue per customer. It shows how many months it takes to earn back what you spent acquiring each customer. A payback under 12 months is good for most SaaS businesses.

How to Use

Enter Your Values

Fill in the input fields with your numbers and select any options relevant to your calculation.

Click Calculate

Press the calculate button to process your inputs instantly using optimized formulas.

Review Results

View your detailed results, copy them to clipboard, or adjust inputs to compare scenarios.

Enter Costs & Customers

Type your marketing spend, sales spend, new customers, ARPU, and customer lifespan. Pick a What-If scenario to test changes.

Review All Metrics

See blended CAC, payback, LTV:CAC ratio, revenue impact, and how you compare to industry benchmarks.

Optimize & Plan

Use the scenarios and benchmarks to identify improvement areas and set unit economics targets.

How to Calculate

The Cac Calculator uses standard mathematical formulas to compute results based on your inputs. Enter your values, click calculate, and the tool processes everything instantly using optimized algorithms â€” all within your browser.

About the CAC Calculator

The CAC (Customer Acquisition Cost) Calculator is an advanced free online tool for startups and SaaS businesses to measure customer acquisition efficiency. It calculates blended CAC, marketing and sales CAC, payback period, customer LTV, LTV:CAC ratio, revenue impact, and includes a What-If scenario simulator and industry benchmark comparison.

All calculations happen locally in your browser. No data is sent to any server, no sign-up required, and no tracking. Your calculation history and inputs are saved in local storage so you can track changes between visits.

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