Is your ROAS lying to you?
A 4× ROAS can still be losing you money. Enter three numbers and see your real Margin on Ad Spend in 30 seconds — the number that decides whether your ads actually make a profit.
Free · 30-second profit check
Your ROAS looks great. Does your profit?
ROAS is the number everyone reports. MoAS — Margin on Ad Spend — is the one that pays the bills. Enter three numbers and see the gap instantly. The calculation runs entirely in your browser — nothing's sent unless you ask us to follow up.
Your last month
A 4.0× ROAS looks healthy — but at 25% margin you're running to stand still. After product cost, this is roughly break-even: about $0 a month.
This is your blended number. Your real leaks hide inside individual campaigns — some are quietly subsidising the rest. Addlaa shows MoAS campaign by campaign and client by client, and names the ones bleeding money.
14-day free trial · No credit card · The calculator runs in your browser — we only use your email if you ask us to follow up.
MoAS, explained
What is MoAS (Margin on Ad Spend)?
MoAS — Margin on Ad Spend — measures how much gross margin each unit of ad spend returns, after cost of goods. Where ROAS compares revenue to spend, MoAS compares profit margin to spend. A MoAS of 1.0 means your ads exactly break even; anything below 1.0 means they lose money once product cost is counted.
How is MoAS different from ROAS?
ROAS (Return on Ad Spend) is revenue divided by ad spend — it ignores the cost of what you sold, so a 4× ROAS can still be unprofitable. MoAS folds in your gross margin: MoAS = ROAS × margin. It is the number that tells you whether a campaign actually makes money, not just revenue.
How do I calculate MoAS?
Multiply your revenue by your gross margin to get margin dollars, then divide by ad spend. For example, $40,000 revenue at 25% margin is $10,000 of margin; on $10,000 of ad spend that is a MoAS of 1.0 — exactly break-even. The calculator above does this instantly and shows your break-even ROAS too.
What is a good MoAS?
Above 1.0 means your ads are profitable after product cost; many agencies aim for 1.5×–2× or higher for healthy margins. Because it depends on your gross margin, the right target varies by business — Addlaa shows MoAS per campaign and per client, so you can see exactly which ones clear the bar.
Is the calculator free, and is my data stored?
Yes, it is free and needs no sign-up. The calculation runs entirely in your browser — nothing you type is sent or stored unless you choose to leave your email for a follow-up on your own campaign data.
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