Inventory Turnover Calculator

Turnover shows how many times inventory sells and is replaced in a year.

How the Math Works

The Inventory Turnover Calculator uses a simple yet powerful formula: turnover = COGS ÷ average inventory. Cost of Goods Sold (COGS) represents the direct costs of producing the goods sold by a business, while average inventory is typically calculated as (beginning inventory + ending inventory) ÷ 2. This division yields the inventory turnover ratio, which tells you how many times a company sells and replaces its inventory over a specific period, usually a year. A higher ratio generally indicates efficient inventory management, while a lower ratio may suggest overstocking or declining sales.

Practical Applications

To apply this calculation practically, gather your company's COGS from your income statement and determine your average inventory for the same period. For instance, if your COGS is $120,000 and your average inventory is $30,000, your turnover would be 4. This means you sell through your entire inventory four times per year. You can use this ratio to compare performance against industry benchmarks, identify slow-moving products, and optimize reordering schedules. Businesses often track this metric monthly or quarterly to spot trends and make informed purchasing decisions.

Day-to-Day Use

In day-to-day business operations, knowing your inventory turnover helps you make smarter decisions about what to order and when. If you discover certain items aren't moving quickly, you might adjust pricing, change display locations, or reduce order quantities to avoid tying up cash in unsold stock. Conversely, fast-moving items might warrant increased orders to prevent stockouts. This calculation also directly impacts your cash flow - faster turnover means you're not stuck with obsolete inventory, freeing up working capital for other business needs. For retail managers, this translates to more efficient shelf space utilization and better customer satisfaction through consistent product availability.

Worked example

$500k ÷ $100k → 5x (73 days).

FAQ