Understanding return on ad spend (ROAS)
Return on ad spend (ROAS) is the advertiser's headline efficiency metric: for every unit of currency you put into ads, how much revenue came back. A ROAS of 4 (often written 4:1 or 400%) means every 1 spent produced 4 in revenue. It is the fastest way to compare campaigns, ad sets and channels on the same footing, and it is the number ad platforms optimise toward.
This calculator divides the revenue attributed to your ads by the amount you spent, and shows the result as both a ratio and a percentage. Enter a campaign, a channel or your whole account — the maths is the same. Because it is revenue-based, ROAS is quick but incomplete: it ignores your margins, so a strong ROAS can still lose money if your product margin is thin.
That is why break-even ROAS matters. If your gross margin is 50%, you need a ROAS of at least 2 just to cover the cost of goods before the ad spend itself pays back. Knowing your break-even point turns ROAS from a vanity ratio into a target: anything above it is profitable growth, anything below it is buying revenue at a loss. Set the target from your margins, then push campaigns to beat it.
TriMediaX manages paid media to a profit target, not a vanity ROAS — building clean conversion tracking and testing creative and audiences so the ratio climbs. Use this tool to check where you stand, then let us help you beat your break-even.
Frequently asked questions
How do I calculate ROAS?+
Divide the revenue generated by your ads by the amount spent on those ads. 10,000 in revenue from 2,500 of spend is a ROAS of 4 (or 400%).
What is a good ROAS?+
It depends entirely on your margins. A 4:1 ROAS is strong for thin-margin retail but may be loss-making for others. Always compare against your break-even ROAS.
What is the difference between ROAS and ROI?+
ROAS measures revenue per unit of ad spend; ROI measures profit relative to total cost. ROAS is quicker; ROI is truer because it accounts for margin and all costs.
What is break-even ROAS?+
It is 1 divided by your gross margin. At a 50% margin, break-even ROAS is 2 — you must return at least 2x spend in revenue just to cover product cost.
Can TriMediaX improve our ROAS?+
Yes. We tighten targeting, test creative and landing pages, and fix tracking so more of your spend converts — managed to a profit target, not just a headline ratio.
Marketing, engineered.
TriMediaX turns numbers like these into revenue with data science, neuromarketing and behavioural analysis.