ROAS Calculator & ROI Calculator — Free Return on Ad Spend Tool
Free ROAS calculator & ROI calculator — measure return on ad spend & investment returns instantly. Essential for marketers, founders & growth teams.
Last Updated: March 25, 2026
Instant Results
5.00x
ROAS
400.0%
ROI
$4000.00
Net Profit
How to Use
- Enter the total revenue attributable to the campaign (use your ad platform or attribution tool).
- Enter the total ad spend including platform fees and agency costs.
- Read ROAS (revenue per ad dollar), ROI (net profit %), and dollar profit instantly.
- ROAS doesn't measure customer quality. Pair it with Customer Acquisition Cost to confirm you're acquiring profitable customers, not just clicks.
Formula Explained
ROAS = Revenue / Ad Spend
ROI (%) = ((Revenue − Ad Spend) / Ad Spend) × 100
- Revenue
- = Gross revenue attributed to the campaign
- Ad Spend
- = Total advertising cost including platform + agency fees
Worked example: A campaign spent $1,000 and drove $5,000 revenue. ROAS = $5,000 / $1,000 = 5.0x. ROI = ($5,000 − $1,000) / $1,000 = 400%.