Inventory Turnover Ratio Calculator

Formula first

Overview

The Inventory Turnover Ratio measures how many times a company's inventory is sold and replaced over a specific period, typically a year. It is a key efficiency metric that helps analysts understand how well a firm manages its stock relative to the cost of products sold.

Symbols

Variables

T = Inventory Turnover, COGS = Cost of Goods Sold, INV = Average Inventory

Apply it well

When To Use

When to use: Use this ratio when evaluating companies in inventory-heavy sectors like retail, manufacturing, or wholesale distribution. It assumes that the Cost of Goods Sold accurately reflects the period's production costs and that average inventory is calculated to smooth out seasonal spikes.

Why it matters: This ratio highlights potential issues such as overstocking, which ties up capital, or understocking, which leads to lost sales. Efficient turnover minimizes storage costs and reduces the risk of inventory obsolescence, directly impacting a company's bottom-line profitability.

Avoid these traps

Common Mistakes

• Using Sales instead of Cost of Goods Sold (COGS) in the numerator.
• Convert units and scales before substituting, especially when the inputs mix times, £.
• Interpret the answer with its unit and context; a percentage, rate, ratio, and physical quantity do not mean the same thing.

One free problem

Practice Problem

A consumer electronics retailer reports a Cost of Goods Sold (COGS) of $1,200,000forthefiscalyear.Iftheiraverageinventorymaintainedthroughouttheyearwas$200,000, calculate the inventory turnover ratio.

Solve for: $IN{V}_{T}URN$

Hint: Divide the total cost of goods sold by the average inventory level.

The full worked solution stays in the interactive walkthrough.

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Related Formulas

References

Sources

1. Investopedia: Inventory Turnover Ratio
2. Wikipedia: Inventory turnover
3. Financial Accounting by Kieso, Weygandt, and Warfield
4. Weygandt, J. J., Kimmel, P. D., & Kieso, D. E. (2020). Financial Accounting (11th ed.). John Wiley & Sons.
5. Investopedia: Inventory Turnover Ratio (article title)
6. Wikipedia: Inventory turnover (article title)
7. Financial Accounting
8. AQA A-level Business Specification