ROAS Calculator
ROAS is attributed revenue divided by ad spend. Spend 2,000,000, take 8,000,000, and that is 4× or 400%. On its own the number cannot tell you whether you made money: at a 40% gross margin, revenue has to reach spend divided by 0.4 — 2.5× — just to cover the ads. Four clears 2.5, so this campaign really is ahead.
Your numbers
ROAS
4×
ROAS as a percentage
400%
Break-even ROAS
2.5×
Profit
1,200,000
What it means
A ROAS of 4× clears the 2.5× break-even, so the ads make money.
Formula
ROAS = Attributed revenue ÷ Ad spend, Break-even ROAS = 100 ÷ Margin
Your margin sets the break-even. At a 20% margin you need 5×; at 10%, 10×. Whether "300% ROAS" is good is unanswerable without the margin. Attribution windows matter too — the same campaign can report double the ROAS on a longer click window.
What to enter
| Input | Default | Accepted range |
|---|---|---|
| Ad spendWhat you spent on ads in the period; production costs are usually counted apart. | 2,000,000 | 0 and up |
| Attributed revenueRevenue attributed to those ads; change the attribution window and it moves a lot. | 8,000,000 | 0 and up |
| Margin (%)Profit divided by the sale price. It can never exceed 100%. | 40 | 0 ~ 100 |
Step by step
Quick reference table
Results when only Ad spend changes and everything else stays put.
| Ad spend | ROAS (×) | ROAS as a percentage (%) | Break-even ROAS (×) |
|---|---|---|---|
| 1,000,000 | 8 | 800 | 2.5 |
| 1,500,000 | 5.33 | 533.3 | 2.5 |
| 2,000,000 | 4 | 400 | 2.5 |
| 3,000,000 | 2.67 | 266.7 | 2.5 |
| 4,000,000 | 2 | 200 | 2.5 |
What each result means
| Result | At default values |
|---|---|
| ROAS (×)Revenue over ad spend, as a multiple — measured on revenue, not profit. | 4 |
| ROAS as a percentage (%)The same figure written as a percentage; 4× is 400%. | 400 |
| Break-even ROAS (×)The ROAS at which the margin just covers the spend; at 40% margin that is 2.5×. | 2.5 |
| ProfitSale price minus cost. | 1,200,000 |
Common mistakes
Your margin sets the break-even. At a 20% margin you need 5×; at 10%, 10×. Whether "300% ROAS" is good is unanswerable without the margin. Attribution windows matter too — the same campaign can report double the ROAS on a longer click window.
Glossary
- Ad spend
- What you spent on ads in the period; production costs are usually counted apart.
- Attributed revenue
- Revenue attributed to those ads; change the attribution window and it moves a lot.
- Margin
- Profit divided by the sale price. It can never exceed 100%.
- ROAS
- Revenue over ad spend, as a multiple — measured on revenue, not profit.
- ROAS as a percentage
- The same figure written as a percentage; 4× is 400%.
- Break-even ROAS
- The ROAS at which the margin just covers the spend; at 40% margin that is 2.5×.
- Profit
- Sale price minus cost.
Frequently asked questions
Q. How is ROAS Calculator calculated?
ROAS = Attributed revenue ÷ Ad spend, Break-even ROAS = 100 ÷ Margin — ROAS is attributed revenue divided by ad spend. Spend 2,000,000, take 8,000,000, and that is 4× or 400%. On its own the number cannot tell you whether you made money: at a 40% gross margin, revenue has to reach spend divided by 0.4 — 2.5× — just to cover the ads. Four clears 2.5, so this campaign really is ahead.
Q. Can you walk through an example?
With Ad spend 2,000,000, Attributed revenue 8,000,000, Margin 40%, the answer is ROAS 4×.
Q. What do I need to enter?
Enter Ad spend, Attributed revenue, Margin. The result recalculates as you type, and an empty box counts as zero.
Q. How much does the answer move if I change a number?
Changing only Ad spend moves the answer to Ad spend 1,000,000 → ROAS (×) 8 and Ad spend 4,000,000 → ROAS (×) 2. The table below lays out five steps.
Q. How are the numbers rounded?
Money is shown to the nearest whole unit, percentages to one decimal place and everything else to two. What you see is rounded; the calculation itself carries the unrounded value forward.
Q. Anything to watch out for?
Your margin sets the break-even. At a 20% margin you need 5×; at 10%, 10×. Whether "300% ROAS" is good is unanswerable without the margin. Attribution windows matter too — the same campaign can report double the ROAS on a longer click window.
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