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Margin Calculator – Calculates the profit margin percentage from a ...

The Margin Calculator calculates the profit margin percentage from a product's cost and selling price. This free Margin Calculator gives you an instant, accurate result without requiring an account, spreadsheet, or financial expertise. Enter your numbers and see exactly what the formula produces.

The formula behind this calculator: Margin = (selling price - cost) / selling price x 100. As a practical example: A product costing $40 sold for $100 has a 60% margin. All results are calculated instantly in your browser — no data is stored or transmitted.

Margin Calculator FAQ

What does the Margin Calculator calculate?

Calculates the profit margin percentage from a product's cost and selling price.

How often should I recalculate as my situation changes?

Any time your rate, income, or financial goals change significantly. For mortgage planning, recalculate whenever rates move more than 0.25%.

What is the difference between fixed and variable rates?

Fixed rates stay constant for the loan term. Variable rates change with a benchmark rate (like SOFR), which can lower or raise your payment unpredictably.

Is my data sent to a server?

No — calculations run directly in your browser. Your inputs are not stored or transmitted.