What ROAS is and how it differs from ROI

ROAS and ROI are two payback metrics that are often confused. The difference between them determines whether you measure profitability correctly. Let's break it down.

ROAS — the return on an ad dollar

ROAS (Return On Ad Spend) is how much revenue each ad dollar brought.

ROAS = revenue from ads ÷ ad spend

Example: you spent $1,000 and ads brought $4,000 in revenue → ROAS = 4 (or 400%).

ROI — profitability accounting for everything

ROI (Return On Investment) counts not revenue but profit, and includes ALL costs, not just ads.

ROI = (profit − all costs) ÷ all costs × 100%

The key difference

• ROAS counts revenue against ad spend — narrow, fast, for evaluating campaigns.
• ROI counts profit against all costs (COGS, salaries, logistics) — broad, for evaluating the business.

The trap: you can have a great ROAS and still lose money. If ROAS = 4 but the product's margin is low, after subtracting COGS and expenses the real profit may be negative.

What ROAS counts as good

It depends on margin. A low-margin product may need more than ROAS 5; a high-margin one is fine with 2. The break-even ROAS = 1 ÷ margin.

What to use

• ROAS — for quick evaluation and comparing campaigns/channels.
• ROI — for deciding whether marketing earns overall.

Takeaway

ROAS is the return on an ad dollar, ROI is real profitability accounting for all costs. A good ROAS doesn't guarantee profit — check against margin and ROI. We help build campaigns that pay off beyond "on paper."