Measure revenue earned per dollar of advertising spend.
Please do not make financial decisions based on these results.
What is the ROAS Calculator?
Measure revenue earned per dollar of advertising spend. To use the ROAS Calculator, enter ad revenue, ad spend, profit margin before ads; it returns roas, break-even roas, profit after ad spend, and shows them instantly as you type.
Where the ROAS Calculator fits
Measure revenue earned per dollar of advertising spend. The main figure it returns is the ROAS, worked out from the values you enter.
It belongs with the other marketing & saas metrics tools. If you are comparing options or checking a result from another angle, try the Customer Retention Rate Calculator, Customer Acquisition Cost Calculator – CAC Calculator or the GRP Calculator.
How to use the ROAS Calculator
- Enter your numbers. Start with Ad revenue ($), Ad spend ($), Profit margin before ads (%). Use real figures from your own records where you can. Fields marked optional can stay at zero.
- Read the result. The highlighted box gives the ROAS, and the cards below show Break-even ROAS, Profit after ad spend. Tables and charts break it down further.
- Test other scenarios. Results update as you type. Change one value at a time to see what drives the answer, and press Reset to go back to the defaults.
Formula and how it works
Example with real numbers
Here is the ROAS Calculator using the default values shown in the calculator above:
Inputs
| Ad revenue ($) | 18,000 |
|---|---|
| Ad spend ($) | 4,500 |
| Profit margin before ads (%) | 35 |
Results
| ROAS | 4× |
|---|---|
| Break-even ROAS | 2.86× |
| Profit after ad spend | $1,800.00 |
With these inputs the calculator returns ROAS: 4×. Change any value in the calculator to see how the result moves.
What if you change one input?
Sensitivity check: raising Ad revenue ($) from 18,000 to 21,600 (about 20% higher) and leaving everything else as in the example above changes the results like this:
| Result | Example | After the change | Change |
|---|---|---|---|
| ROAS | 4× | 4.8× | +20% |
| Break-even ROAS | 2.86× | 2.86× | 0% |
| Profit after ad spend | $1,800.00 | $3,060.00 | +70% |
The input that moves the result most is the one to check twice. Change it in the calculator above to test your own case.
What the results tell you
The results panel of the ROAS Calculator reports ROAS, break-even roas and profit after ad spend. Compare these figures while changing one input at a time, and use the related calculators below to look at the same situation from another angle.
Method and limits. This calculator applies the formula in the section above to your inputs, in your browser; nothing you enter is stored on our servers. The result is only as accurate as the numbers you enter and the formula shown above. It is for information, not financial, tax or legal advice.
Frequently asked questions
What is a good ROAS?
A 4:1 ratio is a common target, but break-even depends on your margin.
Do these calculators connect to my analytics?
No. You type in your own figures, and nothing is sent to our servers.
What is a good LTV to CAC ratio?
Three to one is the usual benchmark: each customer should return about three times what it cost to win them.
Are the results guaranteed?
No. Results depend entirely on the numbers you enter and the formulas shown on this page. Please do not make financial decisions based on them alone; confirm important figures with a licensed professional.
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