Marketing
How to Calculate ROAS
Calculate return on ad spend and understand what the ratio does and does not tell you.
Published 9/3/2026 · Updated 9/14/2026
How to calculate ROAS
ROAS is attributed advertising revenue divided by advertising spend. Revenue of 5,000 from spend of 1,000 produces 5x ROAS.
ROAS is a revenue-to-spend ratio, not a profit guarantee. Product cost, fees, returns, fulfillment and overhead may change the outcome. Use the ROAS calculator with a clearly defined attribution window.
For broader return analysis, see How to Calculate ROI. For impression-cost analysis, see How to Calculate CPM.
Use the related calculator
ROAS Calculator →