Free Online Margin Calculator

1. Enter the revenue (selling price) in the first input.
2. Enter the cost of goods or services sold in the second.
3. Read the profit amount, profit margin %, and markup % in the result panel.

Margin and markup are two ways to express the same profit. Margin = (revenue − cost) ÷ revenue × 100. Markup = (revenue − cost) ÷ cost × 100. For the same numbers markup is always larger — a 50% markup is only a 33.3% margin, and a 100% markup is a 50% margin.

Margin uses revenue as the denominator and is what investors care about because it scales with revenue. Markup uses cost as the denominator and is what buyers and pricing managers quote because cost is what they directly negotiate. Confusing the two is the single most common pricing mistake in retail and SaaS.

This tool shows both at once. Enter revenue and cost, read profit, margin %, and markup %. Useful when negotiating with a supplier who quotes markup while your spreadsheet expects margin, or vice versa.