FreeToolStation

ROAS Calculator

Return on ad spend, and the ROAS you need to break even.

Business Calculators Free, no sign-up Runs in your browser

Revenue left after the cost of the goods or service.

Agency fees, creative, tools. Often the difference between a good ROAS and a profit.

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ROAS
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As a percentage
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Break-even ROAS
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Profit after costs
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Return on investment
MeasureValue
A ROAS of 4 sounds healthy and loses money at a 20% margin. The break-even figure is one divided by your margin, and it is the number to judge a campaign against.

About the ROAS Calculator

ROAS Calculator works out return on ad spend as both a ratio and a percentage, then does the part that most reporting leaves out: it compares the figure against the ROAS your margin actually requires.

Break-even ROAS is one divided by the gross margin. At a 45 per cent margin it is 2.22, so a ROAS of 4.8 is comfortably profitable. At a 20 per cent margin break-even is 5.0, and the same 4.8 is a loss. This is why ROAS targets copied from somebody else's case study are close to meaningless: the number that matters depends on your margin, not theirs.

Other campaign costs are a separate field because they are routinely excluded from ROAS and routinely large. Agency fees, creative production and tooling are real costs of the campaign, and a ROAS calculated on media spend alone can look fine while the campaign as a whole loses money. The profit figure here includes them.

This is arithmetic, not financial advice. It tells you what the numbers do; it cannot tell you whether a decision is right for your circumstances. Fees, taxes and local rules vary, so check anything that matters against the actual offer and speak to someone qualified before committing.

Everything is worked out inside your browser. Nothing you enter is uploaded, logged or stored, which matters for the financial calculators in particular: the figures you put into them are nobody else's business.

Looking for something this does not cover? FreeToolsHub.org is another hub of free online tools that need no account, and it is worth a look if roas calculator is only part of what you are working on.

How to use the ROAS Calculator

  1. Enter revenue from the ads, ad spend and gross margin (%)Decimals are fine, and thousands separators are accepted and ignored.
  2. Read the roas, as a percentage and break-even roasThe figures update as you type. The Calculate button is there if you would rather press something, but nothing waits for it.
  3. Copy or check the resultCopy the summary with the copy button, or open the table to check it row by row.

Features

  • Shows roas, as a percentage, break-even roas, profit after costs and return on investment together, so you are not running it twice
  • A results table you can read across
  • Updates as you type, with no button to press and no page reload
  • Copy the result in one click
  • Free, no sign-up, and it runs entirely in your browser

Who uses this tool

The roas calculator is used by writers, developers, students, marketers and anyone else who needs the job done once without installing software. Common cases include:

  • Judging whether a campaign was actually profitable
  • Setting a ROAS target from your own margin
  • Comparing channels after agency fees
  • Working out the revenue needed to break even on a budget

Frequently asked questions

What is a good ROAS?

Anything above your break-even, which is one divided by your gross margin. There is no universal number: a 2x ROAS is excellent at a 70% margin and ruinous at 20%.

Is ROAS the same as ROI?

No. ROAS compares revenue with spend; ROI compares profit with total cost. A campaign can have a strong ROAS and a negative ROI.

Should I include agency fees?

Yes, if you want to know whether the campaign made money. Put them in other costs; they are excluded from the ROAS ratio by convention but included in the profit.

If the roas calculator is not quite what you need, these other free tools solve closely related problems, and there are 19 more in business calculators.

CPA Calculator

Cost per acquisition with the break-even figure.

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ROI Calculator

Net gain, ROI and the annualised figure from what you put in and got out.

Finance Calculators Use tool

Profit Margin Calculator

Calculate profit margin and markup, or find the price for a target margin.

Business Calculators Use tool

Checked and rebuilt on 2026-10-14. The method this calculator uses is described in the section above, and corrections go through the contact page.