Margin and Markup Calculator guide
Compare gross profit, profit margin, and markup from an item’s cost and selling price.
What this tool does
The Margin and Markup Calculator subtracts entered cost from selling price to produce gross profit per unit. Margin divides that profit by selling price, while markup divides the same profit by cost. Because the denominators differ, a 50 percent markup does not equal a 50 percent margin.
For example, an item costing 40 and selling for 60 has profit of 20. Its markup is 50 percent because 20 is half of cost. Its margin is approximately 33.33 percent because 20 is one-third of selling price. If selling price is zero, margin is mathematically undefined; if cost is zero, markup is undefined. The tool reports those cases rather than inventing a percentage.
The calculation uses only the two entered values. “Cost” must be defined consistently. Depending on the purpose, it may include purchase cost, manufacturing, packaging, shipping, labor, marketplace fees, or another allocation. The result does not automatically include taxes, returns, discounts, overhead, or operating expenses.
How to use it
- Enter a non-negative cost per unit.
- Enter the actual or planned selling price.
- Choose a currency for display only.
- Calculate and compare profit, margin, and markup.
- Confirm that the cost definition includes every expense relevant to the decision.
Use the unrounded figures for further calculations. Displayed currency and percentages are rounded for readability, which can create small differences when copied into another system.
Use the Break-Even Calculator when fixed costs and unit contribution determine the required sales volume. For a general percentage increase, decrease, or proportion, use the Percentage Calculator.
Benefits
- Distinguishes margin from markup clearly
- Handles losses and zero denominators honestly
- Shows gross profit per unit
- Supports several currency display formats
- Uses transparent formulas without hidden assumptions
- Calculates locally without retaining business figures
Business context
Gross profit is not net profit. Pricing decisions may need to account for demand, tax rules, payment processing, advertising, labor, storage, returns, spoilage, and fixed overhead. A healthy unit margin can still accompany an unprofitable business if volume is low or other expenses are high.
Financial notice: This calculator is an educational arithmetic aid, not accounting, tax, financial, or business advice. Verify definitions and treatment with qualified professionals.