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Customer acquisition cost calculator

Calculate blended CAC, optional payback time, and LTV-to-CAC ratio from monthly acquisition inputs.

Private by default Immediate preview No signup for local exports

Live model

Customer acquisition cost calculator

Your inputs

Calculated locally
$
Enter a non-negative number.
$
Enter a non-negative number.
Enter a non-negative number.
$
Enter a non-negative number.
%
Enter a percentage from 0 to 100.
$
Enter a non-negative number.

Live results

Up to date
Monthly acquisition spend
$65,000
Customer acquisition cost
$542
CAC payback
6.84 mo
LTV:CAC ratio
8.31:1

CAC divides monthly sales and marketing spend by new customers acquired in the same period.

How this tool works

A useful result, with clear limits

Calculates blended customer acquisition cost from monthly sales and marketing spend, with optional gross-margin payback and LTV:CAC context.

How to use it

  1. Enter monthly sales costs, marketing costs, and new customers.
  2. Optionally add ARPU and gross margin for payback, or LTV for the ratio.
  3. Review or copy the live outputs.

Inputs and output

Inputs
Sales costs, marketing costs, new customers, and optional ARPU, gross margin, and LTV.
Output
Monthly acquisition spend, CAC, optional payback in months, and optional LTV:CAC ratio.

Formula

CAC = (sales costs + marketing costs) ÷ new customers; payback = CAC ÷ (ARPU × gross margin).

Privacy

All arithmetic runs locally in the browser; financial inputs are not sent to ArcDemo.

Related tools

Customer lifetime value calculatorMarketing ROI calculator

Straightforward by design

What to expect

One focused workflow, clear constraints, and no hidden result gate.

Does Customer acquisition cost calculator upload my input?

The utility processes your input in this browser. ArcDemo only receives content when you explicitly choose a hosted save or product creation flow.