Inventory Turnover Ratio Calculator

Inventory turnover ratio measures how many times a company sells and replaces its inventory during a given period, typically a year. A higher ratio indicates efficient inventory management and strong sales, while a lower ratio may suggest overstocking or weak demand. It is one of the most important metrics for evaluating manufacturing and supply chain efficiency.

This calculator divides your Cost of Goods Sold (COGS) by your average inventory value to compute the inventory turnover ratio. It also calculates Days of Inventory Outstanding (DIO), which shows how many days it takes on average to sell your entire stock. Simply enter your COGS and average inventory value to get instant results.

Yes, this tool is completely free with no subscription fees and unlimited usage. You can calculate inventory turnover for multiple product lines, warehouses, or time periods as many times as you need. The calculations run in your browser and the live preview updates as you type. To open the full results and PDF report, you enter your name and work email; your contact details, inputs and a results summary are then sent to Perimattic so the team can follow up on your analysis.

You need two key figures: your Cost of Goods Sold (COGS) for the period, and your average inventory value. Average inventory is typically calculated as (Beginning Inventory + Ending Inventory) / 2. For example, if your annual COGS is ₹24,00,000 and average inventory is ₹4,00,000, your turnover ratio would be 6.

The calculation is mathematically exact based on your inputs. Accuracy depends on using correct COGS and inventory figures from your financial records. For the most reliable analysis, use audited financial data and ensure your inventory valuation method (FIFO, LIFO, or weighted average) is consistently applied across the periods you are comparing.

Yes, once your results are shown you can download a PDF report including your turnover ratio, days of inventory, and related metrics. The report is useful for internal reports, board presentations, and discussions with financial advisors. You can use it to track inventory efficiency trends over multiple quarters or years.

This calculator is valuable for manufacturing business owners, inventory managers, supply chain professionals, and financial analysts. It is especially useful for businesses carrying significant stock, such as FMCG manufacturers, auto parts producers, and textile mills. Investors also use this ratio to evaluate how efficiently a company manages its inventory.

The formula is: Inventory Turnover Ratio = Cost of Goods Sold (COGS) / Average Inventory. Days of Inventory Outstanding (DIO) is calculated as 365 / Inventory Turnover Ratio. For example, a turnover ratio of 12 means the company sells through its entire inventory every 30.4 days on average.

The calculation itself is instant. You only need a minute or two to enter your COGS and average inventory values. If you need to look up these figures from your accounting software or financial statements, that may take a few extra minutes. The tool provides results in real time as you type.

A good inventory turnover ratio varies by industry, but for Indian manufacturing companies, a ratio between 5 and 10 is generally considered healthy. FMCG manufacturers may see ratios of 12 or higher, while heavy machinery manufacturers might have ratios of 2-4 due to longer production cycles. Compare your ratio against industry benchmarks to assess your stock management performance.