ROAS Calculator
Last updated: October 15, 2026
Calculate return on ad spend from attributed revenue and advertising cost.
Return on ad spend
—
- ROAS percentage: —
- Revenue minus ad spend: —
- Break-even gross margin: —
On this page
Quick summary: Calculate return on ad spend from attributed revenue and advertising cost.
Read the method, example and limitations
Updated reference sections in this guide are in English.
Guide language: English. Updated October 15, 2026.
What this calculator estimates
ROAS Calculator
Inputs and units
Use the units shown for Revenue attributed to ads ($), Advertising spend ($). Required fields cannot be blank. Use zero only where that field and the model allow it. Select Calculate after changing a scenario.
Method and assumptions
ROAS divides advertising-attributed revenue by advertising spend. Zero revenue with positive spend produces zero ROAS. A required break-even margin is undefined at zero revenue.
Worked example
Zero revenue and spend 100 produce 0.00× ROAS and -100 before other costs.
Limitations
ROAS measures revenue, not profit. Attribution, returns and other costs are not assessed; spend must be positive.