Free inventory efficiency tool

Inventory Turnover Calculator

Calculate how often inventory turns each year and the estimated number of inventory days.

Try the demo with a file Request an email pilot

BuyPlan

Enter your data

Annual cost of goods sold

Average inventory value

Annual inventory turnover

4 times

Estimated inventory days: 91.3 days

This is a management baseline. Combine it with MOQ, case packs, variability and actual supplier lead times.

What does inventory turnover show?

Inventory turnover compares annual cost of goods sold with average inventory value. A low result can indicate excess or tied-up cash, but should be benchmarked by industry and season.

Inventory turnover = annual COGS ÷ average inventory value

Transparent calculations show why each product enters the plan

Start with a sample of only 10–30 SKUs

The browser demo processes your file locally and does not upload it

One calculator is a start. A purchase plan needs the full picture.

The BuyPlan demo combines stock, demand, incoming orders, lead time, MOQ, case packs and budget, then ranks items by urgency.

Try BuyPlan for Windows Try the demo with a file

Beta 1.4.0 · 14-day free trial · No credit card or automatic billing · Unsigned installer