Inventory Turnover Calculator – Calculate Inventory Turnover Ratio & Days on Hand

Inventory Turnover Calculator

Calculate inventory turnover ratio and days in inventory.
100% private — your data never leaves your device. All calculations run directly in your browser.

Enter Inventory Details

Results
Inventory Turnover Ratio
0.00
Days in Inventory
0 Days
Inventory turnover = COGS ÷ Average Inventory. Days in inventory = 365 ÷ Inventory Turnover.

This Inventory Turnover Calculator helps business owners, managers, and product‑based companies understand how efficiently they are selling and replenishing inventory. Instead of manually working through formulas or building spreadsheets, you can enter your cost of goods sold (COGS) and average inventory to instantly calculate your inventory turnover ratio and days in inventory. These two metrics are essential for evaluating product performance, cash flow health, and operational efficiency. A higher turnover ratio typically indicates strong sales and efficient inventory management, while a lower ratio may signal overstocking, slow‑moving products, or cash tied up in inventory.

The interface is designed with a clean white glassmorphism layout, subtle shadows, and modern spacing that matches a premium financial tools experience. It’s fast, intuitive, and mobile‑friendly, making it easy to use whether you’re analyzing a single product or reviewing your entire inventory strategy. 100% private — your data never leaves your device. All calculations run directly in your browser, ensuring complete confidentiality. Use this Inventory Turnover Calculator anytime you need a quick, reliable way to measure inventory performance and make smarter purchasing and stocking decisions.