Gross profit per unit and in total from cost, selling price and units sold
Estimates only, not financial advice. What you type stays on your device. Updated on 25 Oct 2026.Gross profit is revenue less the direct cost of what was sold, before rent, wages, marketing and tax. Selling 500 units bought at $18 for $30 each gives revenue of $15,000, cost of $9,000 and gross profit of $6,000, a 40% gross margin.
The page opens with an $18 cost, a $30 price and 500 "Units sold".
Enter your own "Cost per unit" and "Selling price".
Set "Units sold" to the number you sold or expect to sell.
Read Profit per unit and "Total gross profit", then press Share result.
Enter the unit cost, the price and the units to see the profit per unit and in total.
Margin and markup describe the same profit from two sides, and mixing them up is one of the commonest pricing mistakes in a small business. Both start from gross profit, the selling price less the cost of the item. Margin divides that profit by the selling price; markup divides it by the cost. A $40 item sold for $60 makes $20, which is a 50% markup but only a 33.33% margin.
Units and revenue. Enter how many units you sell to see revenue (price × units), the total cost of those units and the total gross profit.
Gross profit here is before overheads such as rent, wages, shipping, platform fees and tax. For marketplace fees and GST use the E-commerce Profit Calculator, and to find how many units cover your fixed costs use the Break-Even Calculator. The currency choice changes only the symbol shown; no exchange rate is applied.
The rest of the article, and all 6 questions about Profit Margin and Markup Calculator, are on the Profit Margin and Markup Calculator page.
Both use the same profit, the selling price minus the cost. Margin divides the profit by the selling price, while markup divides it by the cost. An item bought for $40 and sold for $60 has a $20 profit, which is a 50% markup but a 33.33% margin. Markup is always the larger figure when there is a profit.
Divide the cost by one minus the margin written as a decimal. For a 30% margin on a $40 cost, the price is 40 / 0.70 = $57.14. Adding 30% to the cost gives $52, which is only a 23.08% margin. The calculator does this when you type the cost and the margin.
Keystone pricing means doubling the wholesale cost, a 100% markup. The profit then equals the cost, so it is half the selling price: a 50% margin. A product bought at $12.50 and sold at $25 is keystone. Triple keystone, a 200% markup, gives a 66.67% margin.
No. Gross profit is only the selling price less the direct cost of the item, multiplied by the units sold. Rent, wages, shipping, card and marketplace fees, advertising and income tax all come out later. For marketplace fees and GST the E-commerce Profit Calculator counts them, and the Break-Even Calculator covers fixed costs.
Formula only: no rates or limits are read from an official source.
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Same job, other tools: Amazon Seller Profit Calculator – Profit per Amazon.in order after referral, closing and shipping fees, GST and returns · Flipkart Profit Calculator – Profit per Flipkart order after commission, fixed and shipping fees, GST and returns.
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