OomTools

ROAS Calculator

Return on ad spend answers the only question that matters mid-campaign: is every dollar coming back as more than a dollar? Enter revenue and ad spend for the ratio and a quick read on whether the campaign is pulling its weight.

  • 100% free
  • Private & safe
  • Runs in your browser

Why use ROAS Calculator?

ROAS Calculator turns your inputs into a clear, realistic estimate so you can plan, price and compare with confidence.

  • Runs instantly in your browser — nothing to install, nothing uploaded.
  • Completely free, with no account, no watermarks and no usage limits.
  • ROAS = ad revenue ÷ ad spend
  • Enter the revenue generated by your ads.
  • Works on any device — desktop, tablet and phone — and is fully keyboard accessible.

How to use ROAS Calculator

  1. Enter the revenue generated by your ads.
  2. Enter your ad spend.
  3. See your ROAS as a multiple.
  4. Compare campaigns and cut the losers.

Examples

  • $5,000 revenue on $1,250 spend = a 4× ROAS.
  • Finding your break-even ROAS from your margin.

Supported formats & limits

  • ROAS = ad revenue ÷ ad spend

Limitations

  • ROAS ignores product and fulfilment costs — know your break-even ROAS.
  • A high ROAS on tiny spend may not scale.

Frequently asked questions

What ROAS do I need?

At least your break-even ROAS (1 ÷ profit margin). If your margin is 25%, you need about 4× just to break even.

ROAS vs ROI?

ROAS is a revenue-to-spend ratio; ROI accounts for all costs. Use ROAS for quick ad decisions.

Is higher ROAS always better?

Usually, but very high ROAS can mean you're under-spending and leaving growth on the table.

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