ROAS & Break-even Calculator

Find your break-even ROAS and the most you can pay per sale or per lead before Google Ads loses money.

Your numbers (example values, change them)

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What is left after cost of goods or labour, before ads.
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Results

Break-even ROAS
0%
Max cost per sale
$0
Your ROAS
0%
Profit after ads
$0

What break-even ROAS means

Break-even ROAS is the return you need just to cover the ad spend from your profit. It equals 1 divided by your gross margin. With a 40% margin, you need $2.50 of revenue for every $1 of ads, a ROAS of 250%, before the ads make any money.

Max cost per sale

The most you can pay for one sale or job without losing money is your average value times your margin. Use it as the ceiling when you set a Target CPA, and set the actual target lower so there is profit left.

For lead generation

If you sell services, use the average job value and multiply by your close rate to get a maximum cost per lead. A $450 job at 40% margin with a 35% close rate allows up to $63 per lead.