4.00x is the example result. Read it using the units and relationship stated below.
Lifetime Value to CAC uses customer lifetime value, customer acquisition cost.
Separating campaign efficiency from business profit
For lifetime value to cac, the relationship is Result = (([Customer lifetime value]) ÷ ([Customer acquisition cost])). The amount depends on the supplied customer lifetime value, customer acquisition cost, rather than a live market price or a value imported from another record. Campaign ratios depend on the event being counted. A click, a submitted form, a qualified opportunity and a paying customer are separate outcomes. Combine spend and events from the same campaign window before comparing acquisition costs.
What the model includes
Result = (([Customer lifetime value]) ÷ ([Customer acquisition cost])) Attribution can credit revenue to several channels. Use one attribution definition for the comparison and keep refunds or cancelled orders consistent. An efficient advertising ratio can coexist with weak contribution after fulfilment. Read the result beside lead quality and the sales outcome. A lower cost is useful only when the counted event still represents the objective the campaign was built to achieve.
Example with the supplied inputs
Customer lifetime value: 1800; Customer acquisition cost: 450. Result: 4.00x. The values are illustrative.
Compare one changed input
Customer lifetime value changes from 1800 to 1980. The result becomes 4.40x. All other inputs remain fixed.
Calculation rule
Result = (([Customer lifetime value]) ÷ ([Customer acquisition cost]))
Inputs and output
| Input | Example value | Entry convention |
|---|---|---|
| Customer lifetime value | 1800 | Use the source quantity represented by customer lifetime value. Keep the counted population fixed and avoid mixing a unit value with a period total. |
| Customer acquisition cost | 450 | Use customer acquisition cost on the currency and period basis shown by the formula. Keep gross amounts, net amounts and unit amounts distinct; the page does not fetch a price or exchange rate. |
Output: 4.00x is the example result. Read it using the units and relationship stated below. Use the formula to distinguish a cash amount, count, percentage or ratio.
How to use the page
Collect the inputs
Gather Customer lifetime value, Customer acquisition cost. Use one period and the units shown in the form.
Run the calculation
Enter the values and select the action. The calculation rule above explains how the inputs produce the result.
Compare a scenario
Change Customer lifetime value on its own, keeping the other inputs fixed. Read both results before changing another assumption.
Worked example
With the example inputs listed above, the result is 4.00x.
Change Customer lifetime value from 1800 to 1980 while keeping every other value fixed. The result becomes 4.40x. This comparison isolates that input; it does not forecast how other variables will respond.
Check the stated formula, units and limits before using the result in a decision.
Keep the displayed formula, input units and model scope with the result. Corrections or questions can be sent through the request section on this page.
Content updated: October 11, 2026