COGS Calculator

Cost of Goods Sold (COGS) = Opening inventory + Purchases − Closing inventory. Gross profit = Revenue − COGS

The calculator uses the standard published formula for cogs. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: COGS = Opening stock + Purchases − Closing stock. Each step in the calculation is shown so you can verify the result manually.