Free ROAS Calculator

Enter attributed revenue and ad spend to calculate return on ad spend instantly. Add your contribution margin if you also want a simple break-even comparison.

Campaign inputs

Use revenue attributed to the same campaign and date range as your ad spend.

$
$
%

Use margin after product, fulfillment, payment, and other variable order costs, but before advertising.

Your return on ad spend

4.00×

Above your estimated break-even ROAS

ROAS percentage

400%

Revenue per $1 spent

$4.00

Break-even ROAS

2.00×

Estimated profit after ads

$2,000.00

Calculation: $8,000.00 ÷ $2,000.00 = 4.00× ROAS.

ROAS formula

ROAS = revenue attributed to ads ÷ ad spend.

If a campaign generates $8,000 in attributed revenue from $2,000 of advertising spend, its ROAS is 4.0x. The same result can be written as a 4:1 ratio or 400%.

What to include in the calculation

Revenue should use one consistent attribution source and time window. Ad spend should include the media cost for the same campaigns and dates. If you add agency fees, creative production, or software costs, label the result clearly because it is no longer directly comparable with platform-reported ROAS.

ROAS is not the same as profit

ROAS measures revenue efficiency, not net profit. Product costs, fulfillment, payment fees, discounts, returns, taxes, and overhead can turn a strong-looking ROAS into a loss. Use the break-even ROAS calculator to build those store economics into your minimum target.

How to interpret your result

There is no universal “good ROAS.” A campaign is more useful when its actual ROAS is compared with the break-even threshold for the same products, markets, and period. Attribution settings also differ across ad platforms, so compare like with like and verify performance against your analytics or order data.

Learn the calculation in detail

Read the ROAS formula guide for definitions, common mistakes, ROAS versus ROI, and a worked example. Your entries in this calculator are processed in the browser and are not submitted to BEROAS.