
Inventory Turnover Ratio Explained: Formula, Industry Benchmarks, and How to Improve It
Inventory turnover ratio = COGS ÷ average inventory, and it shows how many times a business sells through its stock each year. This guide covers the formula, converting turnover to days sales of inventory, industry benchmarks from 2–4 turns (industrial parts) to 10–20+ (grocery), and why slow-moving stock costs 20–30% of its value annually to hold.










