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Inventory Turnover Calculator

Quick answer

This calculator computes inventory turnover ratio to measure stock management efficiency.

  • Formula: Inventory Turnover = Cost of Goods Sold / Average Inventory.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How Inventory Turnover Calculation Works

Inventory Turnover = Cost of Goods Sold / Average Inventory

Inventory turnover measures how many times a company sells and replaces its inventory during a period. Higher turnover indicates efficient inventory management - products sell quickly without sitting in warehouses. Lower turnover may indicate overstocking or slow sales.

  1. 1

    Step 1

    Enter Cost of Goods Sold (COGS) for the period

  2. 2

    Step 2

    Input average inventory value (beginning + ending / 2)

  3. 3

    Step 3

    Calculator divides COGS by average inventory

  4. 4

    Step 4

    View turnover ratio and days to sell inventory

  5. 5

    Step 5

    Compare to industry benchmarks to assess performance

Use Cases

Inventory Efficiency Analysis

Measure how efficiently inventory is being managed and identify opportunities for improvement.

Product Performance

Compare turnover across product categories to identify fast-moving and slow-moving items.

Working Capital Management

Optimize inventory levels to free up cash while maintaining adequate stock for sales.

Supplier Negotiations

Use turnover data to negotiate better terms with suppliers based on ordering patterns.

Tips

  • 1

    Typical turnover varies by industry: Grocery 12-15x, Retail 6-8x, Manufacturing 3-5x

  • 2

    Days Sales of Inventory (DSI) = 365 / Turnover Ratio shows average days to sell inventory

  • 3

    Compare turnover year-over-year and to industry averages for meaningful analysis

  • 4

    Higher isn't always better - too high may indicate stockouts and lost sales

  • 5

    Track turnover by product category for actionable insights

Common Mistakes

  • Using Revenue Instead of COGS

  • Point-in-Time Inventory

  • Ignoring Seasonality

  • Cross-Industry Comparisons

FAQs

What is a good inventory turnover ratio?

Depends on industry. Grocery: 12-15x. Apparel: 4-6x. Furniture: 3-4x. Electronics: 6-8x. Compare to your specific industry average.

How do I calculate days to sell inventory?

DSI = 365 / Inventory Turnover. If turnover is 6x, DSI = 365/6 = 61 days average to sell inventory.

Is higher or lower inventory turnover better?

Generally higher is better (efficient inventory management), but too high may mean stockouts. Balance efficiency with service levels.

How can I improve inventory turnover?

Reduce slow-moving items, improve demand forecasting, negotiate smaller/frequent deliveries, run promotions on old stock, and optimize reorder points.

What if my turnover is too low?

Low turnover ties up cash and increases holding costs. Review product mix, identify obsolete inventory, consider markdowns, and improve sales efforts.

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