How to use the Cost Of Goods Sold Calculator

Estimate cost of goods sold based on beginning inventory, purchases and ending inventory.

Calculation formula

COGS = opening inventory + purchases − ending inventory.

Recommended steps

1. Enter values using the units shown beside each field.
2. Review whether the example assumptions match your situation.
3. Run the calculator and compare the key metrics.
4. Use the source data or official rates when precision matters.

Known limitations

Simplified periodic inventory accounting; adjust for freight-in, returns, shrinkage and work-in-process where applicable.