ROAS Calculator

Return on ad spend, ACOS & profit

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ROAS Calculator — guide & how to use

What it does

This ROAS calculator turns ad revenue and ad spend into your return on ad spend and ACOS. Add your profit margin and it also shows your real profit after product cost and ads, plus the break-even ROAS you need to stay profitable. Calculated privately in your browser, free.

How to use it

  1. Enter the revenue your ads generated and your ad spend.
  2. Optionally add your profit margin on that revenue.
  3. Read your ROAS, ACOS, profit and break-even ROAS.

How to embed this tool on your website

No account, no coding. Copy the embed code and paste it where you want it to appear:

<iframe src="https://snaptoolsuite.com/roas-calculator/?embed=1"
  style="width:100%;max-width:560px;height:760px;border:0;"
  title="ROAS Calculator" loading="lazy"></iframe>
<p>Free <a href="https://snaptoolsuite.com/roas-calculator/">ROAS Calculator</a> by Snap Tool Suite</p>
2 Paste it on your page
3 It just works

See it live: view a real embed example →

Frequently asked questions

What is a good ROAS?

It depends on your margins. A common rule of thumb is 4× (400%) for e-commerce, but the real target is your break-even ROAS — enter your margin and the tool shows it. Anything above break-even is profit.

What's the difference between ROAS and ACOS?

ROAS is revenue ÷ ad spend (higher is better). ACOS is ad spend ÷ revenue as a percent (lower is better). They're inverses of each other; this tool shows both.

Is it really free?

Yes — 100% free. Everything is calculated privately in your browser; nothing is stored or sold.

Related tools

Percentage Calculator · Hourly to Salary Calculator · Paycheck Calculator · Overtime Pay Calculator · CPM Calculator · Profit Margin Calculator

🔒 Everything is calculated in your browser. We don't store or sell your data.