GMROI benchmark

GMROI Benchmark for MRO Distribution (2026)

Last updated September 2026

The short answer

In mro distribution, gmroi typically runs 1.5–2.5 — below the cross-industry band of 2.0–3.5. Service buffers weigh on GMROI.

Formula GMROI = Gross Margin $ ÷ Average Inventory Cost

MRO against the cross-industry band

IndustryTypical GMROIWhat good looks like
All industrial distribution 2.0–3.5 Above 3 is strong for distribution
MRO Distribution 1.5–2.5 Service buffers weigh on GMROI

Higher is better on this metric. Every other industry benchmarked for GMROI is in the full benchmark table.

What gmroi measures

GMROI (gross margin return on inventory investment) is the gross profit earned per dollar invested in inventory. Above 1 means inventory earns more than it costs to hold.

The sectors landing closest to MRO on this metric are PVF Distribution and Oil & Gas Distribution. A sector further away is not doing better or worse by definition — the band reflects what the work requires, which is why the comparison that matters is against your own history as much as against the industry.

Sources: Epicor / MDM

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