ROAS calculatorCalculators

ROAS calculator. Is the ad spend paying back?

Type the revenue your ads brought in, what you spent, and your gross margin. See ROAS, the break-even ROAS for your margin and the profit left after ads. Nothing leaves your browser.

Cost to you

Free

Runs in your browser. No signup, no API call, no limit per hour.

browser
runs in
none
API calls
none
account

Use it now

Use the ROAS calculator here

It runs in your browser. Nothing you type is sent anywhere, there is no signup and no limit.

Loading the tool.

Run it from your agent

Copy one prompt, give it to your agent.

Fill in the placeholder, paste it, and the agent runs the same job with current data on your looot account and shows the cost.

  • You give it: ad revenue, ad spend and gross margin.
  • Billed per call, nothing while your agent is idle.
  • The agent shows the price before it calls.
Prompt: ROAS calculator
Use looot to work out the ROAS of my ad campaigns: [paste campaign name, revenue and spend for each]. My gross margin is [margin] percent. 1. Set up https://looot.ai/skill.md. 2. For each campaign, compute ROAS, break-even ROAS and profit after ads. 3. Flag every campaign below break-even. 4. Return one table sorted by profit.

Give this to your agent
Setup command
set up looot - https://looot.ai/skill.md

What comes back

What your agent gets from roas calculator

Field names as the providers return them. The exact set varies by endpoint, and your agent reads it from the catalog.

  • ROAS as a ratio and a percent
  • break-even ROAS for your margin
  • profit or loss after ad spend
  • ad cost of sale (ACoS)
  • revenue needed to break even

Use it for

What people do with roas calculator

  • Judge a campaign

    See if a campaign makes money after product cost, not just revenue.

  • Set a target

    Know the ROAS you must beat before you raise a budget.

  • Compare channels

    Put the numbers of two ad channels side by side on the same margin.

  • Report faster

    Copy the result line into a report or a message to your team.

Set up once

Three steps. Your agent does the rest.

Keep going

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FAQ

Questions about roas calculator

Divide the revenue from ads by what you spent on them. Revenue of 5,000 on a spend of 1,250 is a ROAS of 4, often written 4x or 400 percent.

The ROAS at which ads pay for themselves after product cost. It is 1 divided by your gross margin. At a 40 percent margin, break-even ROAS is 2.5.

Any ROAS above your break-even ROAS makes a profit on the product sold. The right target depends on your margin, repeat purchases and what a customer is worth over time.

ROAS compares revenue to ad spend. ROI compares profit to the whole cost. This calculator shows profit after ads, which is closer to ROI for the campaign.

Ad cost of sale: ad spend divided by ad revenue, as a percent. It is ROAS turned upside down and is common on Amazon ads.

Yes. It runs in your browser with no account and no limit. Nothing you type is sent anywhere.

You still get ROAS and ACoS. Break-even ROAS and profit need a margin, so they show once you fill it in.
For agents
tool
ROAS calculator
category
Calculators
input
Ad revenue, ad spend and gross margin
output
ROAS as a ratio and a percent, break-even ROAS for your margin, profit or loss after ad spend, ad cost of sale (ACoS), revenue needed to break even
price
per call, read live from the catalog on the web page
web tool
runs in the visitor's browser, no API call, free and unlimited
schedule
on demand
setup
https://looot.ai/skill.md
llms.txt
https://looot.ai/llms.txt
updated
2026-10-14
markdown /free-tools/roas-calculator.md

Run roas calculator from your own agent.

Start your workspace, top up, and paste the prompt into the agent you already use. It runs the job with live data and shows the cost first.

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