Marketing · Tool
ROAS / CAC / LTV Calculator
Calculate return on ad spend, CAC, and lifetime value.
ROAS inputs
$
$
CAC & LTV inputs
$
%
Results
ROAS
—
Revenue ÷ Ad spend
CAC
—
Ad spend ÷ New customers
LTV
—
AOV × Retention × Margin
LTV : CAC
—
LTV ÷ CAC
About this tool
Return on ad spend, customer acquisition cost, and lifetime value are the three numbers that decide whether a paid channel is worth scaling. Enter spend, revenue, customers, and retention inputs to see all three metrics with formulas shown, so you understand exactly how each is derived.
How to use it
- 1Enter total ad spend and revenue attributed to it.
- 2Enter new customers acquired to compute CAC.
- 3Optionally enter AOV and retention months to compute LTV.
- 4Review ROAS, CAC, LTV, and LTV:CAC ratio.
FAQ
- What's a healthy LTV:CAC ratio?
- A common benchmark is 3:1 or higher. Below that, you're spending too much to acquire each customer relative to what they're worth.