What can you calculate?
Enter the number of items, purchase cost per item, expected selling price, total delivery cost and other total expenses. SellMargin estimates revenue, total costs, net profit, profit per item, profit margin, return on investment (ROI), break-even price and a selling price for your target margin.
Why keep it simple?
Real reselling costs vary. You might pay for packaging, transport, payment fees or supplies. Instead of forcing you to fill out dozens of fields, SellMargin lets you combine those expenses into one total. You decide which costs apply to your sale.
Free, with no account required
You can use the calculator without registering or sharing your personal details. The estimate is based on the numbers you enter; it is not a guarantee of future earnings.
Understand the result
Profit margin is profit divided by sales revenue. ROI is profit divided by total costs entered. These measures answer different questions, so we show both. Unentered costs, taxes, returns and changing selling prices may affect your actual results.
Try the free profit calculator →
Want to learn more? Read our reselling costs guide or see our privacy policy.