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Break-Even ROAS Calculator

Enter your profit margin and see the exact ROAS your ads need just to stop losing money.

  • Free to use
  • No login
  • Result on screen first
Your answer shows hereType your profit margin above, for example 40, and the ROAS you need appears here.

Why it matters

Why a “good” ROAS can still be a loss

This is the mistake that quietly drains budgets. A 3× ROAS looks healthy on the dashboard, but at a 20% margin you need 5× just to break even. You're losing money on every sale and the numbers look fine.

Know your break-even ROAS and you know your real floor. Neuron Monitor tracks every campaign against it so you cut the losers fast.

How it works

  • Start with your marginThe share of each sale you keep as profit, before ad spend.
  • Divide 100 by itAt a 40% margin that is 2.5. Your ads must return £2.50 for every £1.
  • Add a safety marginWe also show a healthy target, about 1.75 times higher, as a rule of thumb.
  • Keep it as your floorCheck each campaign against this line and cut the ones under it.

What to do next

Know your floor? Check your campaigns against it.

Your result is yours to keep, with no email needed. These are the best next steps.

  • Work out your real ROAS

    Add your ad spend and revenue to see where you stand against this floor.

    ROAS calculator

  • Price a customer

    See what each customer costs you to win, and whether they pay it back.

    CPA calculator

  • Track it live

    Neuron Monitor checks every campaign against your break-even for you.

    Open Monitor

Good to know

Questions, answered plainly.

  • What is break-even ROAS?

    The return on ad spend you need just to cover costs: 100 ÷ your profit margin %. At a 40% margin it's 2.5×; at 20% it's 5×.

  • Why does margin change everything?

    A 4× ROAS is brilliant at a 60% margin and a loss at a 20% margin. The headline ROAS means nothing without your margin.

  • What should I aim for?

    Comfortably above break-even, roughly 1.5 to 2× it, so you've got room for product costs, returns and the odd bad week.

More free tools

Useful next door.

All free tools

  • ROAS Calculator

    Is your ad spend actually profitable at your margin?

    Feeds Monitor

  • CPA Calculator

    What does it cost you to win a customer?

    Feeds Monitor

  • UTM Builder

    Make trackable campaign links so you know what works.

    Feeds Track

Where this goes

Never run ads below break-even again

Neuron360 tracks ROAS against your break-even per campaign, in plain English.

Open MonitorGet my free plan

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