Customer Acquisition Cost Calculator
What each new customer costs to win.
Enter your values
Enter the marketing spend in $.
Enter the sales cost in $.
Enter the new customers you are working with.
Enter the monthly gross profit per customer in $.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- CAC
- $181.82
- Payback period
- 4.8 months
- Total spend
- $40,000.00
- Verdict
- Healthy payback
Quick answer
CAC is total sales and marketing spend divided by the customers acquired in that period.
CAC = (marketing + sales) ÷ new customers
At a glance
| What it does | What each new customer costs to win. |
|---|---|
| Category | Business |
| Inputs needed | Marketing spend, Sales cost, New customers, Monthly gross profit per customer |
| Main output | CAC |
| Formula | CAC = (marketing + sales) ÷ new customers |
| Cost | Free — no sign-up, no download |
How to use the Customer Acquisition Cost Calculator
- 1Add up all marketing spend in the period.
- 2Add fully loaded sales costs.
- 3Divide by customers genuinely acquired in that window.
Inputs explained
- Marketing spend($)
- Enter the marketing spend in $.
- Sales cost($)
- Enter the sales cost in $.
- New customers
- Enter the new customers you are working with.
- Monthly gross profit per customer($)
- Enter the monthly gross profit per customer in $.
Worked example
Using the values the calculator loads with:
Inputs
- Marketing spend24000 $
- Sales cost16000 $
- New customers220
- Monthly gross profit per customer38 $
Results
- CAC$181.82
- Payback period4.8 months
- Total spend$40,000.00
- VerdictHealthy payback
Frequently asked questions
Should I include salaries?
Yes — fully loaded CAC includes sales and marketing headcount.
What payback is good?
Under 12 months for SaaS, under 3 for ecommerce.
What do I need to enter into the Customer Acquisition Cost Calculator?
Just 4 values: marketing spend, sales cost, new customers, monthly gross profit per customer. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Customer Acquisition Cost Calculator work out the answer?
CAC is total sales and marketing spend divided by the customers acquired in that period. It applies the formula CAC = (marketing + sales) ÷ new customers and shows the working so you can check each step by hand.
Is the Customer Acquisition Cost Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.