MER benchmarks show how efficiently total marketing spend converts into total e-commerce revenue. This page gives citable reference points for marketing efficiency ratio, explains how MER differs from ROAS and shows how to interpret category-level variation.
Back to the hub: E-commerce Statistics.
This page belongs to the Traffic & Marketing silo. For channel context, compare it with
organic search share of traffic,
paid search share of traffic,
social share of traffic,
email share of revenue,
ROAS benchmarks
and MER benchmarks.
Benchmarks
MER benchmarks for e-commerce
MER, also called marketing efficiency ratio or media efficiency ratio, compares total revenue with total marketing spend. It is useful because it ignores platform attribution and shows whether the whole marketing system is efficient.
8.47×
Eightx calculated a median MER of 8.47× across nine public DTC and DTC-adjacent brands.
5.84×
The same analysis calculated a revenue-weighted mean MER of 5.84×.
2.55–19.07×
The range across the public-company sample ran from 2.55× to 19.07×.
| Benchmark | Observed level | Interpretation |
|---|---|---|
| Public DTC / adjacent median | 8.47× | A directional public-company reference, not a target for every Shopify store. |
| Revenue-weighted mean | 5.84× | Useful when larger revenue bases are weighted more heavily. |
| Observed public-company range | 2.55× to 19.07× | Category economics create much of the spread. |
| Apparel DTC cluster | 6.8× to 10.8× | Observed range for several public apparel/subscription-adjacent examples. |
| Telehealth subscription example | 2.55× | A low MER can still work when subscription LTV justifies high acquisition spend. |
Channel context
MER vs ROAS
MER and ROAS answer different questions. ROAS helps optimize campaigns. MER tells you whether total marketing spend is efficient for the business.
| Metric | Formula | Best use |
|---|---|---|
| MER | Total revenue ÷ total marketing spend | Board-level and P&L-level view of overall marketing efficiency. |
| ROAS | Attributed revenue ÷ ad spend | Campaign, channel and platform optimization. |
| Blended ROAS | Total paid-attributed revenue ÷ total ad spend | Middle ground between platform ROAS and MER. |
| CAC payback | CAC ÷ gross profit per customer period | Checks whether customer acquisition is financially sustainable. |
Usage
How to use MER benchmarks
MER formula: MER = total store revenue ÷ total marketing spend.
Ad spend ratio: marketing spend as a share of revenue = 1 ÷ MER.
Use MER with ROAS benchmarks, gross margin benchmarks and repeat purchase rate benchmarks. A healthy MER depends on contribution margin, category, retention, inventory model and how much marketing spend is included in the denominator.
Methodology
Methodology note
MER should use the same revenue and spend definitions over time. Decide whether revenue is gross or net, whether refunds are removed, and whether the denominator includes agency fees, creative production, influencer fees, software subscriptions and lifecycle marketing tools. Incomplete marketing spend produces an artificially strong MER.
Sources
Sources and notes
Use these sources as directional benchmarks. Traffic and marketing performance data should be normalized by channel definition, attribution window, geography, seasonality and product category.
- Eightx ecommerce MER by vertical 2026 — FY25 MER range, median and category-level public-company benchmarks.
- Northbeam MER vs ROAS guide — definitions and explanation of MER, ROAS and blended efficiency measurement.
Cite this page
How to cite this dataset
E-commerce MER Benchmarks. Best For Ecommerce. Updated 2026-05-31. Available at: https://bestforecommerce.com/ecommerce-statistics/traffic-marketing/mer-benchmarks/