eBay Cost of Goods Sold Calculator
Estimate your eBay cost of goods sold, gross profit and gross margin based on unit cost, quantity sold and selling price.
Overview
Use this eBay Cost of Goods Sold Calculator to estimate the inventory cost attached to items you sold, along with gross profit and an estimated amount left after eBay fees. It is useful for reviewing a batch of sales using your unit cost, quantity sold, selling price and estimated fee rate.
How it works
The calculator multiplies your total per-unit cost by the quantity sold to estimate cost of goods sold. It also multiplies selling price by quantity sold to estimate revenue. Gross profit is revenue minus cost of goods sold, while the net figure subtracts both cost of goods sold and estimated eBay fees. Gross margin is gross profit divided by revenue, shown as a percentage.
How to use this calculator
- 1Enter your cost per item.
- 2Add the number of units sold.
- 3Enter the average selling price per unit.
- 4Include any extra per-item costs if relevant.
- 5Add your estimated eBay fee percentage.
- 6Review your cost of goods sold, profit and margin results.
Example Calculation
Unit cost
$12
Quantity sold
25
Selling price per unit
$25
Include additional per-unit costs
true
Additional cost per unit
$2
eBay fee rate
13%
Cost of goods sold
$337.50
If each item costs $12.00 plus $1.50 in extra unit costs and sells for $24.99, 25 sales would produce estimated cost of goods sold of $337.50, gross profit before fees of about $287.25, and net after estimated eBay fees of about $204.47.
Frequently asked questions
What does this calculator estimate?
It estimates your cost of goods sold for eBay sales, plus gross revenue, gross profit, estimated eBay fees and a net figure after those costs.
What is cost of goods sold on eBay?
Cost of goods sold is the direct cost of the items you sold, usually based on purchase or production cost and the number of units sold.
Should I include packaging in cost of goods sold?
Many sellers track packaging or prep materials separately, but this calculator lets you include them as optional per-unit costs for a broader estimate.
Does this calculator include shipping and taxes?
No. It focuses on item cost, sales value and an estimated eBay fee percentage. Shipping, sales tax, refunds and overhead are not included.
How do I estimate my eBay fee rate?
Use your recent seller reports or order summaries to work out an average percentage of sales taken in fees, then enter that rate here.
Why is gross margin different from net after fees?
Gross margin in this calculator is based on revenue minus cost of goods sold only. Net after fees also subtracts your estimated eBay selling fees.
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Assumptions and warnings
Assumptions
- This calculator treats cost of goods sold as unit cost multiplied by quantity sold.
- eBay fees are estimated using a single percentage entered by the user.
- Gross margin is calculated before marketplace fees unless shown in the separate net figure.
- Shipping charges, refunds, taxes, promoted listing fees and overhead are not included unless built into your inputs.
Warnings
- This calculator provides an estimate only and is not accounting or financial advice.
- Check your actual eBay fee structure, refunds and records before making pricing or inventory decisions.