What is break-even ROAS?

What is the break-even ROAS formula?

Break-even ROAS is 1 divided by the contribution margin ratio. The ratio is price minus variable costs per order, divided by price, as defined by the Corporate Finance Institute.

Contribution margin ratio = (price − variable costs per order) ÷ price
Break-even ROAS = 1 ÷ contribution margin ratio

Variable costs are the costs that come with each order: product cost, shipping you pay, payment fees, packaging and per-order app or fulfilment fees. Fixed costs such as rent and salaries stay out.

Worked example

These are the example numbers the break-even ROAS calculator uses.

• Contribution margin = 150 − 90 = 60 per order.
• Margin ratio = 60 ÷ 150 = 0.40.
• Break-even ROAS = 1 ÷ 0.40 = 2.5.
• Break-even CPA = 60: the most you can pay in ads for one order.
• Break-even CPM = 60 × (50 ÷ 200,000) × 1,000 = 15.

At a ROAS of 2.5, each order brings in 150 and costs 60 in ads plus 90 in variable costs. It makes zero.

The same funnel is used in the ROAS, CPA and CPM entries: 2,500 of spend, 50 purchases and 7,500 in revenue. Its actual ROAS of 3.0 is above 2.5, its CPA of 50 is below 60 and its CPM of 12.50 is below 15, so each order leaves a profit after ads.

Why is break-even ROAS the answer to "what is a good ROAS"?

Because it is calculated from your own costs. A ROAS of 3.0 makes money at a 40 percent margin (break-even 2.5) and loses money at a 30 percent margin (break-even 3.33). A single "good ROAS" figure cannot be right for both. See ROAS.

What is the difference between break-even ROAS and target ROAS?

Break-even ROAS is the floor where profit is zero. A target ROAS is a higher number you set so that each order also leaves the profit you want after ads. Some brands accept a first-order ROAS near break-even when repeat orders raise lifetime value.

How is it used for AI and UGC ads?

Break-even ROAS turns creative testing into a yes-or-no decision. Each new AI version of a script either clears the line over a fair test or it does not. Brands that brief creators with a break-even number in hand can judge every version against the same bar, and break-even CPA gives the same line per order for teams that report in cost per purchase.

Use contribution margin, not gross margin, if you can. Gross margin often leaves out shipping and payment fees, which makes break-even ROAS look lower than it is. The Amazon Ads "Ads Math" guide works from the same profit-per-sale idea.