Calculators — Free

Customer LTV Calculator

LTV (customer lifetime value) is the total revenue an average customer brings over their whole relationship with you. It's the number that decides how much you can afford to spend on acquisition. Enter three inputs and get your LTV — add your CAC and get the ratio that VCs and CFOs actually look at.

Leave blank for revenue-based LTV, or enter your margin for profit-based LTV — the more honest number for spend decisions.
Enter your CAC to see your LTV:CAC ratio.
Customer LTV—Enter average order value, purchase frequency and lifespan to calculate.

How it works

LTV = average order value × purchases per year × years a customer stays. A customer who spends $80 per order, 4 times a year, for 3 years is worth $960 in revenue. Toggle the margin option to see profit-based LTV instead of revenue-based.

If you enter your CAC, the tool also returns your LTV:CAC ratio. Above 3:1 is generally healthy; below that, acquisition is eating too much of the value it creates; dramatically above 5:1 often means you're under-investing in growth.

FAQ

Profit-based LTV (multiplying by gross margin) is more honest for spend decisions, because you can only pay for acquisition out of margin. Revenue LTV is fine for tracking trends — just never compare revenue LTV against CAC and call it a ratio.

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