Google Ads guide

What Is a Good ROAS for Google Ads?

There is no single good number. A good ROAS is any figure above the break-even point set by your profit margin. Here is how to find yours.

5 min read · Updated October 2026

ROAS in one line

Return on ad spend tells you how much revenue each unit of ad cost brings back.

ROAS = revenue from ads ÷ ad spend

If you spend 1,000 and the ads bring in 4,000 in sales, your ROAS is 4x. That sounds strong, but the number only means something once you compare it with your margin.

Why "4x" is not always good

Advice like "aim for 4x" ignores how much of each sale you keep. Revenue is not profit. A shop that keeps 20% of every sale needs a much higher ROAS than one that keeps 60%.

Break-even ROAS = 1 ÷ profit margin

Profit margin here means what is left from a sale after product cost, shipping and fees, but before ad spend. Below this ROAS you lose money on every click.

Profit marginBreak-even ROASROAS for 30% profit on ad spend
10%10.00x13.00x
20%5.00x6.50x
30%3.33x4.33x
40%2.50x3.25x
50%2.00x2.60x
60%1.67x2.17x

The third column uses (1 + 0.30) ÷ margin. Swap in the return you want and the table updates the same way.

A worked example

Example store, one month

Ad spend
3,000
Revenue from ads
9,600
ROAS
3.20x
Profit margin
40%
Break-even ROAS
2.50x
Profit before ads
3,840
Profit after ads
840

A 3.2x ROAS clears the 2.5x break-even point, so this store earns 840 after ad cost. At a 25% margin the same 3.2x would lose money, because break-even there is 4x.

Three ways to raise ROAS

What to do next

Work out your own break-even ROAS from the formula above, then compare it with your account's real ROAS over the last 30 days. If you are under, fix CPC or conversion rate before raising budget. If you are comfortably over, scaling spend is usually the next move.

Skip the manual maths: put your numbers into the Google Ads ROAS & Break-Even Calculator. Then read How to Calculate Break-Even CPA and compare your cost per click with the CPC benchmarks by industry.