Inventory turnover ratio: Definition, Formula & Why It Matters

Also called: Stock turn, Inventory turns

Inventory turnover ratio measures how many times you sell and replace your entire inventory in a period. It is cost of goods sold divided by average inventory. Higher turnover means your capital cycles faster; online gear resale commonly runs 6 to 12 turns per year.

Inventory turnover ratio formula

Inventory turnover = COGS ÷ average inventory

Example

$60,000 in COGS against $10,000 average inventory is a turnover of 6.0 times per year.

Why it matters for Reverb sellers

Turnover is the clearest signal of whether your cash is working or sitting on the shelf. Low turnover ties up working capital and raises the risk of aging stock; very high turnover can mean you are selling out and leaving sales on the table.

How Verbstack helps

Verbstack calculates turnover across your shop automatically so you always know how fast your inventory is moving.

Try it yourself with the Inventory Turnover Calculator.

Track this on every order, automatically.

  • Real fees, margins, and profit on every Reverb sale
  • COGS and inventory tracked for you, no spreadsheet
  • Full history and a live monthly P&L
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