Margin Calculator
Calculate gross profit, margin, markup and selling price automatically.
Gross Margin % = (Gross Profit ÷ Selling Price) × 100
Markup % = (Gross Profit ÷ Cost) × 100
Margin Calculator: Find Your Profit Margin, Markup & Selling Price in Seconds
Running a business means pricing your products right, and that always comes down to one question – am I actually making money? A margin calculator answers in seconds, without your touching a spreadsheet.
What Is Profit Margin?
Profit margin is simply how much of your selling price is actual profit, after covering the cost of the product. If your sell something for 1000 and it cost your 700 to make or buy, your profit is 300. That’s 30% margin.

The Formulas Behind the Calculator
You don’t need to remember these to use the tool, but knowing them helps you trust the numbers:
Gross Profit = Selling Price – Cost
Gross Margin % = (Gross Profit ÷ Selling Price) × 200
Markup % = (Gross Profit ÷ Cost) × 100
Ratio % = (Cost ÷ Selling Price) × 100
Margin and markup often get confused, but they’re not the same think. Margin is profit as a percentage of your selling price. Markup is profit as a percentage of your cost. On the same 300 profit above, your markup would be about 42.8%, even though your margin is 30%. Mixing these two up is one of the most common pricing mistakes small business make.
Why Use This Calculator Instant of Doing It by Hand?
Enter any two values – cost, selling price, or your target margin – and the tool fills in the rest automatically. Want to know your what to charge for 40% margin on 500 cost item? Just enter cost and margin, and your selling price no manual instantly. No manual formula juggling, no rounding error.
Who This Is For
Whether You’re a shop owner setting retail prices, a freelancer quoting a project, or a startup founder building a pricing sheet, this calculator takes the guesswork out of the math. It works entirely in your browser, updates live as you type, and needs on login or download.
Quick Tip
If you’re unsure that margin to aim for, research your industry average first – retail typically runs 20-50%, while service can go much higher. Then use the calculator to work backward from that target margin to your ideal selling price.