ROAS Calculator
Enter the revenue your ads generated and what you spent to get your ROAS instantly, plus ACoS and profit, so you can see whether your advertising actually pays back.
Your ad numbers
ROAS
4.00×
Revenue returned per euro of ad spend
ACoS
25.0%
Ad spend as a % of revenue
Profit after ad spend
€15,000
Ad revenue minus ad spend
What this means: A solid return. Many e-commerce stores target around 3-4x.
How to calculate and improve ROAS
ROAS, return on ad spend, is the revenue your advertising generates divided by what you spent on it. €20,000 in attributed revenue from €5,000 of spend is a 4.00× ROAS, meaning every euro you put into ads returned four. It's the clearest measure of whether your advertising is buying growth or just buying clicks.
ACoS is the same relationship flipped: ad spend as a percentage of revenue. A 4.00× ROAS is a 25% ACoS. Marketplaces like Amazon usually report ACoS, while most other channels talk in ROAS, but they describe the same efficiency, pick whichever your team reads fastest and stay consistent.
There's no universal 'good' ROAS. Break-even sits wherever ad spend equals the gross profit on the sale, so it's driven entirely by your margins. A high-margin product can thrive at 2×, while a thin-margin one bleeds money below 6×. Work out your break-even ROAS from your product margin before you judge any campaign.
The fastest way to lift ROAS is usually to stop wasting spend on traffic that won't convert. Incomplete product data, missing specs, weak titles, poor images, wrong categories, hurts both ad relevance and on-page conversion at once. WISEPIM enriches and standardizes product content across your catalog and feeds, so every euro of ad spend lands on a page that's built to sell.
You measured blended ROAS.
One number hides which products carry your ads and which quietly lose money. WISEPIM's Marketing Attribution analytics breaks ROAS down by product and by channel, so you see exactly which products pay back ad spend, and which ones to fix or pause.
Related free tools
See all toolsPeople also search for
Frequently asked questions
How do I calculate ROAS?
ROAS = revenue from ads ÷ ad spend. Divide the revenue you attribute to your advertising by what you spent on those ads in the same period. €20,000 in attributed revenue from €5,000 of spend is a 4.00× ROAS, every euro spent returned four euros.
What's the difference between ROAS and ACoS?
They're two views of the same number. ROAS is revenue divided by ad spend (a multiple, like 4.00×), while ACoS is ad spend divided by revenue as a percentage (25% in that example). Amazon advertisers tend to track ACoS; most other channels report ROAS. A 4.00× ROAS always equals a 25% ACoS.
What is a good ROAS?
It depends entirely on your margins. A common rule of thumb is 4×, but break-even is wherever ad spend equals your gross profit on the sale, so a high-margin product can stay profitable at 2×, while a thin-margin one needs 6× or more. Calculate your break-even ROAS from your product margin first, then aim above it.
How do I improve my ROAS?
Stop paying for clicks that don't convert. Incomplete product data, missing specs, weak titles, poor images, wrong categories, drags down both ad relevance and on-page conversion, so you spend more to sell the same amount. WISEPIM enriches and standardizes product content across your catalog and feeds, lifting conversion and cutting wasted spend.
What is break-even ROAS and how do I find it?
Break-even ROAS is the point where ad spend exactly equals the gross profit on the sales it drives, so the campaign neither makes nor loses money. Calculate it as 1 ÷ your gross margin. A product with a 25% margin needs a 4.00× ROAS to break even; a 50% margin only needs 2.00×. Anything above your break-even ROAS is profit; anything below is a loss.
Why does my reported ROAS differ between platforms?
Each ad platform claims credit using its own attribution window and model, so Meta, Google and your analytics tool will rarely agree. Platforms count view-through and last-click conversions differently and often double-count the same sale. Treat platform ROAS as a directional signal and reconcile against blended ROAS, total revenue divided by total ad spend, for the real picture.