How to Use This ROAS Calculator
Fill in any two of Revenue, Ad Spend, and ROAS. The third field calculates instantly. No submit button needed.
Example — measuring performance: You spent $5,000 and generated $20,000 in revenue. Enter revenue = $20,000 and spend = $5,000. ROAS = 4.00×.
Example — planning a budget: You need a 5× ROAS and expect $50,000 in revenue. Enter revenue = $50,000 and ROAS = 5. Required spend = $10,000.
Switch to Break-Even ROAS mode to find the minimum ROAS threshold for your gross margin. This is the number your campaigns must beat to be profitable.
The ROAS Formula Explained
Revenue — the total attributed revenue from the campaign. Use revenue that the platform attributed to those ads, not total business revenue.
Ad Spend — actual billed spend for the period, not budget. Include all ad costs but not agency fees (unless comparing to an all-in cost scenario).
ROAS — expressed as a multiplier. A ROAS of 4 means every dollar spent returned four dollars in revenue. It is not a percentage.
Break-Even ROAS — What Is It and How to Calculate It
Gross margin is revenue minus cost of goods sold, expressed as a decimal. A product that sells for $100 with a $60 COGS has a 40% gross margin (0.40).
Break-even ROAS at 40% margin = 1 ÷ 0.40 = 2.50×. This means the campaign must return $2.50 for every $1 spent just to cover product costs. Any ROAS below 2.5× is a loss.
Both "break even ROAS" and "breakeven ROAS" refer to the same calculation — the terminology varies by platform and organization.
What Is a Good ROAS? Benchmarks by Channel
A good ROAS is one that exceeds your break-even threshold with enough headroom to cover overhead and generate profit. These cross-industry averages are a starting point only.
| Channel | Avg. ROAS (e-commerce) |
|---|---|
| Google Search | 4–8× |
| Google Shopping | 5–12× |
| Meta Ads (Facebook/Instagram) | 3–6× |
| TikTok Ads | 2–4× |
| Amazon Sponsored Products | 3–10× |
| YouTube Ads | 2–5× |
Sources: Google Ads e-commerce benchmarks; Meta Ads industry reports; Amazon Advertising; YouTube for Business. Updated August 2026.
Common ROAS Mistakes
- Using gross revenue instead of net revenue in attribution. If returns and refunds are not subtracted, ROAS looks better than reality.
- Confusing ROAS with ROI. A 4× ROAS does not mean a 400% ROI. ROI accounts for all costs; ROAS only measures spend vs. revenue.
- Not knowing your break-even ROAS. A 3× ROAS looks strong until you realize your gross margin requires 4× to break even.
- Mixing attribution windows. A 7-day click attribution ROAS is not comparable to a 28-day view-through ROAS. Always match windows when benchmarking.
- Ignoring blended ROAS. Individual campaigns may vary widely; look at total account ROAS to judge overall efficiency.