Tool · Performance Benchmarking

Inventory Turnover Calculator

Calculate your inventory turnover ratio and days sales of inventory. Compare against industry benchmarks to optimize your stock management.

Inventory Turnover Ratio
Turnover Ratio = COGS ÷ Average Inventory

COGS = Cost of Goods Sold (annual)

Avg Inventory = Average Inventory Value over the period

Days Sales of Inventory
DSI = 365 ÷ Turnover Ratio

DSI = Average days to sell through entire inventory

365 = Days in a year

Input Values
$
$

Inventory Turnover Ratio

N/A

How many times inventory is sold and replaced per year

Days Sales of Inventory

N/A

Average days to sell through your inventory

Average Inventory Held

$0.00

Average value of inventory on hand

Multi-channel inventory

Stop running these numbers by hand.

You just calculated this for a handful of SKUs. Organizely does it across your entire catalog, updates every time an order comes in, and tells you exactly when to act.

  • Automatically tracks every SKU across all your channels
  • AI demand forecasting predicts stockouts before they happen
  • Smart reorder alerts so you never miss a purchase order
  • Real-time sync — no CSV exports or manual data entry

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Tool guide · Why use it

What this tool helps you do

  • Calculate inventory turnover ratio instantly
  • See days sales of inventory (DSI)
  • Compare against industry benchmarks
  • Identify slow-moving stock
  • Optimize purchasing decisions
FAQ · 05 entries

Frequently asked questions.

01What is a good inventory turnover ratio?

A good inventory turnover ratio depends on your industry, but for ecommerce businesses, 4-6 turns per year is considered average. Ratios above 6 indicate efficient inventory management, while ratios below 2 suggest overstocking or slow-moving products.

02How do I calculate average inventory value?

Average inventory value is calculated by adding your beginning inventory value and ending inventory value for a period, then dividing by two. For example, if you started the year with $50,000 and ended with $70,000, your average inventory is $60,000.

03What is Days Sales of Inventory (DSI)?

Days Sales of Inventory (DSI) measures the average number of days it takes to sell through your entire inventory. It is calculated as 365 divided by your inventory turnover ratio. A lower DSI means you sell inventory faster.

04Why is my inventory turnover ratio low and how can I improve it?

A low turnover ratio often means you are holding too much stock relative to your sales. To improve it, consider running promotions on slow-moving items, improving demand forecasting, negotiating smaller and more frequent supplier orders, or discontinuing underperforming SKUs.

05What is the difference between inventory turnover and stock turnover?

Inventory turnover and stock turnover are the same metric; both measure how many times your inventory is sold and replaced over a period. The terms are used interchangeably in accounting and supply chain management.