Question 1

What is ROAS and how is it calculated?

Accepted Answer

ROAS (Return on Ad Spend) = Revenue from Ads ÷ Ad Spend. A ROAS of 4 means you generate $4 in revenue for every $1 spent on ads. It's the primary metric for measuring ad campaign efficiency. Unlike ROI (which measures profit), ROAS measures revenue — so you need to factor in your margins to determine if a given ROAS is actually profitable.

Question 2

What is a good ROAS?

Accepted Answer

'Good' ROAS is entirely dependent on your gross margin. A 4× ROAS is excellent for a 70% margin SaaS product (you keep $280 of the $400 revenue) but unprofitable for a 30% margin physical product (you only keep $120 after COGS, barely covering the $100 ad spend). Use break-even ROAS as your baseline — your target ROAS should be 50–100% above break-even.

Question 3

How do I calculate break-even ROAS?

Accepted Answer

Break-Even ROAS = 1 ÷ Gross Margin. Examples: 50% gross margin → 2× ROAS to break even. 40% gross margin → 2.5× ROAS. 30% gross margin → 3.33× ROAS. 20% gross margin → 5× ROAS. Your actual ROAS must exceed this to make a profit on advertising. Below break-even ROAS, every ad dollar loses money.

Question 4

What's the difference between ROAS and ROI?

Accepted Answer

ROAS = Revenue ÷ Ad Spend. ROI = (Profit − Investment) ÷ Investment × 100%. ROAS is a ratio of revenue to spend; ROI is a percentage of profit to investment. A 4× ROAS on a 40% margin product translates to a 60% ROI [(4 × 0.6 − 1) ÷ 1 × 100]. Advertisers prefer ROAS for campaign optimization; CFOs prefer ROI for profitability reporting.

Question 5

Why does my ROAS look good but profits are low?

Accepted Answer

If ROAS looks good but profits are thin, check: (1) Is COGS higher than you estimated? Every 5% more in COGS requires roughly 0.5× higher ROAS to maintain the same profit, (2) Are you attributing revenue correctly? Last-click attribution inflates ROAS vs. data-driven attribution, (3) Are there unaccounted costs — agency fees, creative production, tool subscriptions? These reduce true ad ROI by 15–30% for many businesses.

ROAS Calculator — Calculate Return on Ad Spend & Break-Even ROAS

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