Free inventory tools

Inventory turnover calculator

See how many times you sell through stock in a year.

Cost of goods sold (annual)Average inventory value

Turnover ratio · Days of inventory

—

Turnover = COGS ÷ average inventory. Days = 365 ÷ turnover.

More tools

Work out the stock level that triggers a new order.

Learn more

Set a buffer so you do not run out during demand spikes.

Learn more

Find the order size that minimizes ordering and holding costs.

Learn more

Rank items by value into A, B, and C groups.

Learn more