ROAS Calculator – Return on Ad Spend
Calculate ROAS (Return on Ad Spend) and find the minimum revenue needed to justify any ad budget.
About This Calculator
Calculate ROAS (Return on Ad Spend) and find the minimum revenue needed to justify any ad budget. Use the calculator above for instant results.
Worked Examples
- ROAS: 4.0x | For every $1 spent, earned $4
Answer: 4.0x ROAS
- ROAS: 1.5x | Revenue > spend but profit margin matters
Answer: 1.5x ROAS
- ROAS: 0.5x — losing money on ads
Answer: 0.5x — losing money
Who Uses This Calculator?
Measure ad campaign performance.
Decide ad budget allocation.
Report campaign results to clients.
Optimize paid acquisition.
Common Mistakes to Avoid
❌ Confusing ROAS with profit
ROAS measures revenue / spend. Profitability depends on gross margin. A 3x ROAS with 20% margin might be unprofitable.
❌ Attribution errors
Last-click attribution overstates ROAS for bottom-funnel ads. Use multi-touch attribution for true picture.
Frequently Asked Questions
Target ROAS?
Depends on gross margin. If margin is 30%, need ROAS > 3.3x to profit. Formula: target ROAS = 1 / gross margin.
ROAS vs ROI?
ROAS = revenue / ad spend. ROI = (revenue - total cost) / total cost. ROI is more complete (includes COGS and overhead).
Minimum profitable ROAS?
Break-even ROAS = 1 / (1 - COGS%). For 40% margin: ROAS > 2.5x to break even on ads alone.