Home / Tools / ROAS Calculator

Free tool

ROAS Calculator

Work out your return on ad spend, then check it against the break-even point for your margin — because a 4x ROAS can still lose money.

Your numbers Any period
Total spent on ads in the period, excluding agency fees.
Revenue your ad platform or analytics attributes to those ads.
Check against break-even Optional · adds your gross margin
Result

Enter your ad spend and revenue to see your ROAS, what it means, and how it compares to break-even.

How this calculator works

Enter what you spent on ads and the revenue those ads generated. The calculator divides revenue by spend to give your ROAS. Add your gross margin and it also shows the ROAS you need just to break even, plotted against where you actually are.

The formula

ROAS = Revenue ÷ Ad spend. Break-even ROAS = 100 ÷ gross margin percentage. Both figures must cover the same period, and ad spend should exclude agency fees so you are measuring the media rather than the management.

Worked example

Spend $5,000, generate $40,000 in attributed revenue, and your ROAS is 8.0x — $8 back for every $1 spent. At a 40% gross margin, break-even is 2.5x, so that campaign is comfortably ahead.

How to read your result

ROAS on its own is not profit. At a 40% margin you need 2.5x before you make a cent, so 2.0x is a loss even though it looks like a return. Compare against your own break-even, not against an industry figure.

Questions

Not for ROAS — it measures media efficiency. Include them when you calculate marketing ROI or CAC, which are about the whole cost of acquisition.

The revenue your ad platform or analytics attributes to those ads over the same period. Be consistent about attribution windows when comparing months.

Ad platforms attribute generously and often count view-through conversions. Expect platform-reported ROAS to read higher than your accounts.

Proof this works

An ecommerce account where the maths actually held up at scale — 12x attributed ROAS across the period.

If you would rather we handled it

We run paid advertising with profitability as the measure, not impressions.

Free growth plan

Want the numbers behind your numbers?

We will review your advertising, website and tracking, then show you where the biggest gain is. No obligation.