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Target ROAS Calculator

Work out the target ROAS (tROAS) to set in Google Ads so you hit the net profit margin you actually want to keep — not just break even.

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Enter your numbers

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%
Profit left after ad cost.
Target ROAS to set
Break-even ROAS

How target ROAS works

For every £1 of revenue you keep your gross margin and pay 1÷ROAS in ads. To keep a target net margin: tROAS = 1 ÷ (gross margin − target net margin). Want 20% net on a 40% margin? Set tROAS to 5.0.

Don’t just set break-even

A break-even tROAS makes no profit. Decide the net margin you want to keep first, then set the tROAS that delivers it.

Frequently asked questions

How do I calculate target ROAS?

Divide 1 by (gross margin − target net margin), expressed as decimals.

What tROAS should I set in Google Ads?

One that leaves the net profit you want after ad cost — this tool gives you that figure.

Is this free?

Yes — no sign-up.

Numbers not adding up?

If the figures aren't where you want them, I'll find exactly where your Google Ads budget is leaking — free, no obligation.

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