Calculate customer lifetime value (LTV) against customer acquisition cost (CAC) to see whether your business is growing profitably and the most you can pay to win a customer.
Rough averages are fine
Total monthly marketing spend, including ads, agency fees and influencers
See how much each method improves your LTV:CAC
Please fill in all the details first
Enter purchase data and marketing spend
and we'll calculate instantly
* The highest acquisition cost that still keeps a 3:1 ratio, the benchmark most businesses use to leave enough profit to cover fixed costs.
Sustainable growth means acquiring customers for less than the profit they generate
A calculator comparing LTV (the profit one customer generates over the whole time they buy from you) with CAC (the cost of acquiring one new customer), showing whether your business grows profitably and the most you can pay to acquire a customer.
Two numbers that tell you whether your business is growing sustainably or burning money
The total gross profit one customer generates for as long as they keep buying from you, calculated as order value × gross margin × purchases per year × years
Total marketing spend divided by the number of new customers acquired. If you spend 50,000 THB on ads and get 100 new customers, CAC = 500 THB.
Around 3:1 or higher is good. Below 1:1 means you lose money on every customer you acquire. Above 5:1 may mean you're under-investing in marketing and could scale further.
Use them together to cover every part of your marketing plan