Cost of Goods Sold (COGS) Calculator

The Formula

Cost of Goods Sold is calculated using the basic inventory accounting formula, representing the direct cost of the products sold during a period. It is one of the most important numbers on any income statement.

Variable Definitions

How to Use This Calculator

1. 1

   Enter the value of your beginning inventory (from the start of the period).

2. 2

   Enter the total cost of inventory purchased or produced during the period.

3. 3

   Enter the value of unsold inventory remaining at the end of the period.

4. 4

   Optionally enter total revenue to see gross profit and margin calculations.

5. 5

   Review COGS as a percentage of revenue — if it is too high, explore supplier alternatives or price increases.

Common Applications

• Calculating true product cost for inventory accounting and tax reporting at the end of each accounting period
• Determining gross profit and gross margin by subtracting COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. from revenue to evaluate business profitability
• Tracking inventory efficiency by monitoring COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. as a percentage of revenue month over month to spot cost trends
• Comparing COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. across different product lines to identify which products are most profitable to sell

COGS formula — beginning inventory plus purchases minus ending inventory

Understanding the Concept

COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. is a critical income statement line item. It represents the direct cost of the products a business sells. Lower COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. with the same revenue means higher gross profit and margin. COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. only includes costs directly tied to production: raw materials, direct labor, and manufacturing overhead. It does NOT include selling expenses, marketing, or administrative overhead — those are operating expenses. Tracking COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. accurately is essential for understanding true product profitability and pricing strategy. Real-world example: a clothing brand reports beginning inventory of $50,000, makes $120,000 in purchases, and has $45,000 in ending inventory. Their COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. is $125,000. If revenue is $250,000, gross profit is $125,000 (50% margin). If the owner overestimates ending inventory at $55,000, COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. drops to $115,000 and margin inflates to 54% — creating a false picture of profitability that will reverse when the inventory error is discovered. This is why physical inventory counts and accurate costing methods matter so much. For a manufacturer, COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. also includes factory labor and overhead. A furniture maker spending $200 on wood, $50 on hardware, $80 in direct labor, and $30 in factory overhead per table has a COGSThe direct cost of producing or purchasing goods sold, including materials and labor. Used to calculate gross profit. of $360 per table.

Frequently Asked Questions

Sources & References