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Free ROAS Calculator

See your return on ad spend, and whether it's actually making you money at your margin.

  • Free to use
  • No login
  • Result on screen first
Your answer shows hereEnter your ad spend and revenue to see your ROAS.

Why it matters

A high ROAS can still lose money

This is the trap. A 3× ROAS sounds healthy, but if your profit margin is 20%, every sale costs more in ads than it makes. You're paying to lose money, and the dashboard looks fine.

That's why margin matters more than the headline number. Enter yours above to see your break-even ROAS and real profit. Neuron Monitor tracks this live, per campaign.

What it works out

  • Your return per £1Revenue divided by ad spend. A 4× return means £4 back for every £1 spent.
  • Break-even for your margin100 divided by your margin. Below this number you lose money on every sale.
  • Your real profitWhat is left after ad spend, at the margin you enter.
  • A plain verdictStrong, tight or losing money, so you do not have to guess.

What to do next

Got your number? Here is what to do with it.

Your result is yours to keep, with no email needed. These are the best next steps, in the order most people take them.

  • Check your break-even

    Work out the exact ROAS your margin needs, then compare every campaign to it.

    Break-even calculator

  • Price a customer

    A return is only half the story. See what each customer costs you to win.

    CPA calculator

  • See it live, per campaign

    Neuron Monitor pulls your real ad and sales numbers, so you stop typing them in.

    Open Monitor

Good to know

Questions, answered plainly.

  • What is ROAS?

    Return on ad spend: revenue divided by ad spend. A 4× ROAS means you made £4 for every £1 spent. It's the quickest read on whether ads are working.

  • What's a good ROAS?

    It depends entirely on your profit margin. A 3× ROAS is great at a 60% margin and a loss at a 20% margin. That's why this calculator asks for your margin.

  • What's break-even ROAS?

    The ROAS you need just to cover costs: 100 ÷ your margin %. Below it you lose money; above it you profit. Aim well clear of it.

  • Is it free?

    Yes, no login. For your real, live ROAS per campaign, Neuron Monitor pulls the numbers automatically.

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Where this goes

Know your real return, automatically

Neuron360 pulls your live ad and sales numbers and shows true profit per campaign, no spreadsheets, no guesswork.

Open MonitorGet my free plan

Want to hear when the full suite opens?

Your result above is yours already. This is an optional swap: leave your email and we will tell you the day Neuron360 opens.

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