Comprehensive Guide
Learn more in our Business & Tax Guide.
How it works
customer acquisition cost calculator — general takes your inputs and produces customer acquisition cost, ltv:cac ratio. Calculate CAC across all marketing channels and find the optimal spend to maximize profit. You provide 4 inputs: Total Marketing Spend (currency, in dollars) (default: 15000 dollars); Sales Team Cost (currency, in dollars) (default: 10000 dollars); New Customers Acquired (number) (default: 200); Customer LTV (currency, in dollars) (default: 1500 dollars). The calculator returns 2 outputs: Customer Acquisition Cost (a secondary output); LTV:CAC Ratio (the primary result). Business tax and finance calculations combine multiple moving parts — revenue, expenses, depreciation, tax brackets, and timing — in ways that make back-of-envelope estimates unreliable. This calculator handles the interaction of those variables precisely, so your business decisions rest on real arithmetic. With the default values, ltv:cac ratio is computed from the interaction of every input field — change any one of them and the result updates immediately, so you can stress-test different scenarios without re-entering the whole form. Adjust the inputs to match your real financial situation. The defaults are realistic starting points, but every person's circumstances differ — your actual income, expenses, rates, and timelines will produce a different answer. Use the tool iteratively: start with the defaults, then change one variable at a time to see which factor has the largest impact on your outcome.Tips
- Start with the default values to see a baseline result, then change one input at a time to understand which factor matters most for your outcome.
- Replace every default with your actual number — estimates and rules of thumb produce estimates, not answers. Pull your real figures from pay stubs, statements, or account dashboards.
- Run the numbers quarterly, not annually. Tax brackets, revenue, and expenses shift throughout the year, and adjusting early is far cheaper than correcting at year-end.
Frequently asked questions
What is a good CAC?
Depends on LTV. Target LTV:CAC ratio of 3:1. If LTV is $1,500, CAC should be under $500. SaaS averages $200-$700 CAC.
How accurate are the calculator results?
The math is exact — the same formulas a financial professional would use by hand. The precision of the output depends entirely on how realistic your inputs are. Use your actual numbers rather than estimates when possible. The defaults are reasonable starting points, but your real income, rates, and timeline will produce a different result.
What should I enter for total marketing spend?
Enter your actual total marketing spend value. The default of 15000 dollars is a common starting point, but replace it with your real figure for an accurate result.