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ROAS.

Revenue per pound of ad spend invested.

ROAS stands for Return on Ad Spend: if one pound of ad budget brings in four pounds of revenue, the ROAS is 4. It's essentially the inverse of ACoS.

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What this means for you

ROAS in practice.

ROAS is handy for comparing across channels – Meta, Google, TikTok and Amazon can all be brought to a common denominator with it. What matters is the context: a „good" ROAS depends entirely on your margin. At a 20% margin a ROAS of 3 is a loss-maker, at a 60% margin the same figure is very profitable.

Amer, founder of Onfidence
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ROAS in the context of your margin.

ROAS answers a single question: how much revenue does one pound of ad budget bring in? At £1,000 of spend and £4,000 of revenue, the ROAS is 4.

What's decisive is the context: revenue is not profit. A ROAS of 4 means that, at a 20% contribution margin, £4,000 of revenue brings only £800 of contribution – so with £1,000 of ad costs that's a loss. At a 60% margin the same ROAS would be highly profitable.

That's why we always work with atarget ROAS derived from your actual margin – not with industry figures off the internet.

Improve ROAS.

01
Test creative

On social channels the creative makes the biggest difference – not the bid.

02
Sharpen your audiences

Less wastage means a directly better ROAS.

03
Landingpage optimieren

Every percentage point of conversion feeds one-to-one into the ROAS.

04
Retargeting ausbauen

Warm audiences almost always deliver the highest ROAS in the account.

05
Tracking reparieren

A large share of supposedly poor campaigns are actually just poorly measured.

06
Increase order value

Bundles and upsells improve the ROAS without a penny more ad budget.

Common mistakes.

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Averaging ROAS across all campaigns. Retargeting and new-customer acquisition aren't comparable.

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Optimising only for a high ROAS. The highest ROAS usually comes at tiny reach – growth looks different.

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Ignoring tracking gaps. Without the Conversions API a significant share of the data is missing.

Frequently asked questions about ROAS.

What is a good ROAS?
The one that sits above your break-even. As a rule of thumb: 1 divided by your contribution margin gives the minimum ROAS.
ROAS or ACoS?
Two perspectives on the same thing – ROAS is common in web marketing, ACoS on Amazon. Mathematically they're the inverse of each other.
Why do the platform and the shop differ from each other?
Because platforms attribute conversions using their own attribution windows. Always compare against your actual shop figures.
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