Citable benchmarks
Average ecommerce conversion rate is often ~2–3% (varies widely by industry and traffic mix).
Source: IRP Commerce — Ecommerce Market Data (Jan 2026)
Average ecommerce cart abandonment rate is 70.19%.
Source: Baymard Institute — Cart Abandonment Rate Statistics (2024)
Key takeaways
- Ecommerce Campaign Tool — ROI & Launch Checklist for Ecommerce — focus on one metric or lever at a time; validate with data before scaling spend.
- Pair reading with free Growthegy calculators (LTV, ROAS, break-even, pricing) to turn ideas into numbers.
- Bookmark growthegy.com/tools/ and run the Business Strategy Quiz when you need a prioritised roadmap.
What is campaign ROI?
Campaign ROI is the return on investment from a marketing campaign: (Profit ÷ Ad spend) × 100. To estimate before you spend: expected visitors from budget and CPM/CPC, conversions = visitors × conversion rate, revenue = conversions × AOV, profit = revenue − COGS − ad spend. Use the calculator below to model scenarios and the checklist before launch.
Campaign ROI Calculator
Estimate revenue and return on ad spend for your ecommerce campaign. Adjust the inputs to match your planned or actual numbers.
Campaign launch checklist
Tick off each item before you go live to reduce risk and improve results.
Pre-Spend ROI Formula: How to Calculate ROI Before You Spend
You can estimate marketing campaign ROI before spending by using a simple forecast:
- Expected visitors — From your budget and typical CPM/CPC (e.g. $1,000 at $0.50 CPC ≈ 2,000 visitors).
- Conversions — Visitors × your site conversion rate (e.g. 2,000 × 2.5% = 50 conversions).
- Revenue — Conversions × Average Order Value (e.g. 50 × $75 = $3,750).
- Profit — Revenue − (Conversions × COGS) − Ad spend.
- ROI % — (Profit ÷ Ad spend) × 100.
If profit is negative or ROI is low, adjust ad spend, targeting, or conversion assumptions before launching. Our Campaign Tool above does this calculation for you and includes a pre-launch checklist.