Free · Browser-Based · Inventory Efficiency

Inventory Turnover Calculator

Estimate inventory turnover ratio, average inventory, and days on hand from cost of goods sold and beginning/end inventory balances.

Cost of goods sold (COGS)

Beginning inventory

Ending inventory

Days in period

Inventory summary

🎯 Common Use Cases

Check stock movement efficiency

Estimate days inventory remains on hand

Compare product or store performance

Review working capital efficiency

Why use average inventory?

Average inventory smooths beginning and ending balances so turnover is less distorted by one-time timing effects.

What does a higher turnover ratio mean?

Generally, it means inventory sells through faster, but context matters by industry and product category.

Is everything local?

Yes. The calculator runs fully in your browser.