Marketing ROI benchmarks — Ecommerce (2026)
| Channel | Avg ROI / metric | Context |
|---|---|---|
| Email (e-commerce) | 45:1 | Highest ROI channel for e-commerce — loyalty + repeat purchase model |
| Google Shopping | 6:1 | High purchase intent; competes on price and title/image quality |
| Paid social (Meta) | 3:1 | Discovery channel; ROAS drops in competitive seasons (Q4) |
| Average e-commerce CAC | $45 | Varies widely: $10 (email) to $150+ (paid social) by channel |
| Average order value | $68 | Varies hugely by category; fashion $55, electronics $180, luxury $350+ |
| Target blended ROAS | 4:1+ | Across all channels combined; accounts for higher CPAs on awareness channels |
Frequently asked questions
A good blended ROAS for e-commerce is 4:1 or above across all channels combined. Google Shopping typically achieves 5–8:1, Meta ads 2–4:1, and email 40:1+. The blended ROAS target depends on your gross margin — at 30% margin, break-even ROAS is 3.3:1. Target at least 1.5× break-even ROAS to allow for profitable growth.
E-commerce ROI = (Revenue × Gross Margin − Total Marketing Cost) ÷ Total Marketing Cost × 100. Include all costs: ad spend across platforms, agency fees, email platform costs, and creative costs. Measure per-channel ROI using UTM parameters and GA4 attribution. Note that last-click attribution over-credits paid search and under-credits email and social discovery.
LTV-adjusted CAC calculation: Total CAC ÷ Average Customer LTV. If LTV is $420 and CAC is $45, the LTV:CAC ratio is 9.3:1 — excellent. This matters because an e-commerce customer who makes 6 purchases over 3 years is worth acquiring at a higher CAC than a one-time buyer. Use LTV:CAC to justify higher CAC on channels that drive loyal, repeat-purchase customers.
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