Inventory Turnover Calculator
Calculate how efficiently your business sells and replaces inventory over a given period.
* All calculations are approximate.
How Inventory Turnover Calculator Works?
Calculate how efficiently your business sells and replaces inventory over a given period.
Enter your Cost of Goods Sold (COGS) for the period (typically annual).
Enter your average inventory value — the mean of beginning and ending inventory.
The calculator divides COGS by average inventory to get the turnover ratio.
Days to sell inventory is calculated by dividing 365 by the turnover ratio.
A higher turnover ratio indicates faster-moving inventory and more efficient stock management.
Formula Used
Inventory Turnover Ratio = COGS / Average Inventory | Days to Sell = 365 / Turnover Ratio | Monthly Turnover = Turnover Ratio / 12
Average inventory is typically calculated as (Beginning Inventory + Ending Inventory) / 2. For seasonal businesses, use monthly averages for a more accurate representation.
Important — Read Before You Decide
- Low turnover ties up capital in unsold stock
- High turnover may indicate stock shortages and lost sales
- Industry benchmarks for turnover vary significantly
- Seasonal businesses have naturally fluctuating turnover rates
- Average inventory calculation method affects the ratio
- Dead stock should be identified and written off separately
- Turnover ratio doesn't account for profit margins on items
What Happens If You Ignore These?
- Excess inventory leads to storage costs and waste
- Understocking causes missed sales and unhappy customers
- Poor turnover hides obsolete or slow-moving products
- Tied-up capital in inventory limits business growth
- Inaccurate inventory data leads to poor purchasing decisions
Smart Tips
- Track turnover by product category for better insights
- Use just-in-time inventory to improve turnover ratio
- Review slow-moving items monthly for markdowns or removal
- Negotiate better payment terms with high-turnover suppliers
- Set reorder points based on days-to-sell metrics
Frequently Asked Questions
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