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Calcimator

Customer Acquisition Cost Calculator

Calculate CAC, LTV, and LTV:CAC ratio from marketing and sales spend.

Inputs

$
$
$
years

Results

Customer Acquisition Cost

$300.00

≈ 5 tanks of gas

Customer Lifetime Value$900.00
LTV:CAC Ratio3
CAC Payback Period12 months
Customer ROI200%
Total Monthly Spend$15,000.00
Cost Per Lead$60.00
How to Use This Calculator
  1. Enter Monthly Marketing Spend and Monthly Sales Spend.
  2. Input New Customers per Month acquired in the period.
  3. Enter Average Order Value, Purchases per Year, and Average Customer Lifespan (years).
  4. Review Customer Acquisition Cost (CAC) and compare to Customer Lifetime Value (CLV).
  5. A healthy CLV:CAC ratio is 3:1 or higher — use this to set sustainable ad spend budgets.

How the result changes with New Customers / Month

New Customers / MonthCustomer Acquisition Cost
10,001$1.50
35,001$0.43
65,000$0.23
90,000$0.17

What each input means

Monthly Marketing Spend
Total monthly marketing budget (ads, content, tools).
Monthly Sales Spend
Total monthly sales cost (salaries, commissions, tools).
New Customers / Month
Number of new customers acquired per month.
Average Order Value
Average revenue per order.
Purchases Per Year
Average number of purchases per customer per year.
Customer Lifespan
Average customer relationship duration in years.

How this is calculated

Worked example, using the default values

  1. Identify Input Parameters
    4 parameters
    Monthly Marketing Spend = 10000, Monthly Sales Spend = 5000, New Customers / Month = 50, Average Order Value = 75 = 6 input(s) provided
  2. Calculate Customer Acquisition Cost
    Customer Acquisition Cost
    300 = $300
  3. Calculate Customer Lifetime Value
    Customer Lifetime Value
    900 = $900
  4. Calculate LTV:CAC Ratio
    LTV:CAC Ratio
    3 = 3

Engine last updated . Checked against 1 independently-derived test — how we verify calculators.

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