Inventory Turnover Calculator

Turnover Ratio + DIO (Days Inventory Outstanding)

📦 Inventory Metrics

Inventory Turnover4.00
DIO (Days Inventory)91.25 days
Inventory Turns/Year4.00
Avg Days to Sell91 days

How to Use This Calculator

Calculate inventory turnover and DIO in 3 steps:

  1. Enter COGS: Cost of Goods Sold for the period
  2. Enter Average Inventory: Average inventory value for the same period
  3. View Results: See turnover ratio, DIO, and days to sell

Inventory Turnover Formulas

Inventory Turnover = COGS / Average Inventory
DIO (Days Inventory Outstanding) = 365 / Turnover
Avg Days to Sell = DIO

Real-World Example

Scenario: Retail business annual inventory analysis

Input: COGS: $200,000, Average Inventory: $50,000

Results:

  • Inventory Turnover: 4.0x
  • DIO: 91.25 days
  • Turns/Year: 4.0
  • Avg Days to Sell: 91 days

Why Inventory Turnover Matters

Inventory turnover is crucial for:

  • Optimizing cash flow and working capital
  • Identifying slow-moving or obsolete stock
  • Benchmarking against industry standards
  • Improving purchasing and inventory decisions

Frequently Asked Questions

What is a good inventory turnover ratio?

It varies by industry: Grocery (10-15), Retail (4-8), Luxury goods (2-4), Automotive (3-6). Higher is generally better, but too high may indicate stockouts.

What does DIO mean?

DIO (Days Inventory Outstanding) shows how many days it takes to sell your inventory. Lower DIO = faster turnover = better cash flow.

How can I improve inventory turnover?

Strategies: (1) Better demand forecasting, (2) Reduce slow-moving stock, (3) Optimize pricing, (4) Improve marketing, (5) Just-in-time inventory.

What if my turnover is too high?

Very high turnover may mean you're frequently stockout, losing sales. Balance efficiency with availability to maximize profits.

Is this calculator free?

Yes! This Inventory Turnover Calculator is completely free to use.

Related Calculators: Check out our Gross Margin Calculator, Profit Margin Calculator, or Break-Even Calculator!