ROAS Calculator

ROAS is return on ad spend: revenue divided by what you paid the ad platform. On its own it cannot say whether the ads made money. This is built for businesses that sell through leads. Plan what to spend to hit a profit goal, or check a campaign you have run, and see the break-even ROAS you have to beat.

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I want to

Start with the profit you want. This works out the jobs, leads and ad budget to get there.

YOUR NUMBERSONE CAMPAIGN

Job value, if you pass jobs on and keep a part: enter what you keep per job, not what the customer pays.

Nothing here is sent anywhere. There is no request to a server while you type.

THE ANSWERLIVE
Ad budget -- leads needed times cost per lead
Jobs needed -- profit goal divided by profit per job, rounded up
Leads needed -- jobs divided by close rate, rounded up

Enter your profit goal, job value, margin, close rate and cost per lead.

Planned ROAS -- job value times close rate, divided by cost per lead
Break-even ROAS -- the multiple your margin on a job demands
Max cost per lead -- the most a lead can cost before a job stops paying
Profit per job -- job value times margin, minus cost per lead divided by close rate
/ coming next

Your break-even and ROAS, answered inside Claude and ChatGPT.

Set it up once, for the whole team, from your own tracked data. Then ask in plain words, like “show me how the spring campaign actually performed”.

What's free here vs. everywhere else

FeatureThis calculatorOther free ROAS calculators
Free, no signupYesMost
Break-even ROAS from your own marginYesMost
A verdict that stays right at a thin marginYesSome call a loss strong
Max cost per lead and cost per booked jobYesNot found
Says a read before jobs close is not finalYesNot found
A "good ROAS" benchmark tableNone, by designSome, loosely sourced
Answered inside Claude and ChatGPTComing next--

Based on 11 free ROAS calculators we read in October 2026. A sample, not a census. A dash means we did not check.

How much should I spend on ads to hit a profit goal?

Work backwards from the profit you want. Profit per job is job value times margin, minus cost per lead divided by close rate. Divide your goal by that to get the jobs you need, divide the jobs by your close rate to get the leads, and multiply the leads by cost per lead to get the budget. At a $5,000 goal, a $2,500 job, a 40% margin, a 20% close rate and $100 a lead, that is 10 jobs, 50 leads and a $5,000 budget. Cost per lead and close rate can change once you spend more, so treat the answer as a starting point. The Plan side of this calculator does the sum for you.

How do you calculate ROAS?

ROAS, return on ad spend, is the revenue credited to a campaign divided by the media spend on it. Spend 1,000 and get 4,000 back and your ROAS is 4.00x. The sum is easy. The part people get wrong is the revenue. Use the revenue the ads are credited with, not your total revenue, and say where you read it: the ad platform, GA4 or your own books. They rarely agree.

What does ROAS tell you, and what does it leave out?

ROAS is a gross revenue ratio, so it says nothing about whether that revenue was profitable. A campaign at 4.00x is losing money at a 15% margin and making money at a 40% one. The ratio is the same in both cases, which is exactly why it cannot answer the question on its own.

What is a good ROAS?

There is no honest single answer, and the published benchmarks do not agree with each other. Cold prospecting and branded search behave nothing alike, and neither do a software business and a retailer. The number that does hold for you is your break-even ROAS, because it comes from your own margin rather than from an average somebody else compiled.

How do you calculate break-even ROAS?

Break-even ROAS is 1 divided by your margin on a job. At 50% you break even at 2.00x. At 25% you need 4.00x. At 15% you need 6.67x. Below that line the ads cost more than the margin they brought in, whatever the headline ratio looked like.

How much can I pay for a lead?

The most a lead can cost is close rate times average job value times margin on a job. At a 20% close rate, a $2,500 job and a 40% margin, that is $200. Pay more than that per lead and the ads lose money, even if every other number looks healthy. Both sides of the calculator show it as max cost per lead.

What if the plan says my cost per lead is too high?

It means each job costs more in ads than it earns, so a bigger budget only loses more. Four things can fix it: a lower cost per lead, a higher job value, a higher close rate or a higher margin on a job. The calculator names the cost per lead to get under. That is the max cost per lead: close rate times job value times margin.

What is cost per booked job?

It is cost per lead divided by close rate. Fifty leads for $5,000 is $100 a lead. At a 20% close rate that is 10 jobs, so $500 a booked job. Compare it with what one job earns you after the cost to deliver it.

Where do I find the revenue from my leads?

In your CRM or job software, not in the ad platform. Save where each lead came from when it arrives, with tags on the link (our UTM builder makes them) or a tracking phone number, then total the paid jobs from those leads. Jobs close weeks after leads arrive, so wait before you judge a month. Until you have it, type a close rate and read the result as an estimate.

What is the difference between ROAS and ROI?

ROAS compares revenue to ad spend. ROI compares profit to the total cost of producing it, ad spend included. That is why a strong ROAS and a negative ROI can describe the same campaign. Break-even ROAS is the bridge between them: it is the point where the margin exactly covers the media cost.

What is target ROAS, and should I set it at break-even?

Target ROAS is a bidding input in Google Ads, not a reporting metric: you tell the system what return to optimise toward and it bids accordingly. Setting it at your break-even point targets zero profit. Set it above break-even by whatever the rest of the business needs to cover, and remember that a campaign limited by budget may never reach the target it was given. The Plan side of this calculator shows the ROAS a dollar profit goal needs, which is a better place to start.

Is this calculator free, and where do my numbers go?

Free, with no signup, no account and no paid tier. Your numbers go nowhere: the whole calculation runs in your browser, there is no request to any server when you type, and the numbers are not saved between visits. Close the tab and they are gone. (If you choose to ask for early access to the connector, that email is the one thing that does get sent, and only when you submit it.)