ROAS Calculator — Return on Ad Spend
Calculate your ROAS. See your return on ad spend ratio, net profit, and ROI instantly.
ROAS Formula
ROAS = Ad Revenue / Ad Spend
Target ROAS = 1 / Gross Profit Margin. At 25% margin, break-even ROAS = 4x, must be > 4x to profit.
How to Evaluate ROAS?
ROAS alone is not a sufficient metric — it should always be interpreted together with your gross profit margin. The same 3x ROAS can be profitable for a product with 60% margin while causing a loss for one with 20% margin. That's why target ROAS must be calculated separately for each campaign.
| Industry | Avg ROAS | Target ROAS |
|---|---|---|
| E-commerce (Fashion) | 3–5x | 4–6x |
| E-commerce (Electronics) | 6–10x | 8–12x |
| B2B SaaS | 3–8x | 5–10x |
| Beauty & Cosmetics | 4–7x | 5–8x |
| Food & Grocery | 5–9x | 6–10x |
When using the tROAS (Target ROAS) bidding strategy in Google Ads, you need at least 30 days of conversion data. tROAS campaigns launched with insufficient data can waste budget. In the first phase, collect data with the Maximize Conversions strategy, then switch to tROAS.
The Critical Difference Between ROAS and ROI
ROAS (Return on Ad Spend) and ROI (Return on Investment) are two distinct performance metrics. ROAS only accounts for advertising spend, while ROI factors in product costs, operating expenses and all other costs. High ROAS can coexist with low or even negative ROI when product margins are thin. Monitoring both metrics together is essential for sustainable growth.
How to Set a Target ROAS?
The target ROAS value is determined by your product margins and business model. For a product with a fifty percent margin, the minimum ROAS to break even is 2 (200%); ROAS values below this cannot cover advertising spend. The general advice is to keep target ROAS at least thirty to fifty percent above the break-even point. This ensures the marketing budget generates sustainable profit aligned with growth objectives.
ROAS Benchmarks in E-Commerce and Digital Advertising
Acceptable ROAS values vary significantly by industry. In e-commerce, the average Google Ads ROAS typically ranges from 4 to 8, meaning 4 to 8 units of revenue are generated for every unit of ad spend. However, for high-ticket products (luxury goods, B2B software) a ROAS of 2–3 may still be considered profitable. Use your gross profit margin as the primary reference point when setting your own ROAS benchmark.
Most Common Mistakes in ROAS Optimisation
ROAS values calculated without correct conversion tracking in the ad account are misleading. The last-click attribution model ignores the contribution of other channels in the conversion path. Additionally, interpreting ROAS in the moment without accounting for seasonal effects and campaign warm-up periods can lead to incorrect optimisation decisions. Using at least four weeks of data when making comparisons improves reliability.
Different Approach for ROAS and Brand Awareness Campaigns
ROAS alone is not the right measurement for brand awareness campaigns; the goal of these campaigns is not to generate immediate sales but to build long-term brand equity. For this reason, keeping awareness campaigns in a separate budget pool and measuring success with different KPIs such as impressions, reach and increases in branded search provides a more meaningful analysis.