About the Profit Margin Calculator
This free profit margin calculator helps people in the United States get a quick, private estimate before they talk to a lender, insurer, employer or advisor. There is no signup, nothing is stored on our servers and every result updates instantly in your browser.
How this calculator works
Profit equals price minus cost. Margin is profit divided by price. Markup is profit divided by cost.
Worked example
Cost $60 and price $100 gives $40 profit, 40% margin and 66.7% markup. Change any input above to see how the result moves, which is the fastest way to understand which factor matters most for you.
Tips to get a better result
Margin and markup are often confused. A 50% markup equals only a 33% margin. Include shipping, fees and overhead when setting price.
Key factors that change your result
Margin is profit as a percent of selling price, while markup is profit as a percent of cost, so the two numbers differ. Remember to include shipping, platform fees, returns and labor in your cost for a realistic margin.
Accuracy and limits
Every calculator on 100tools uses standard published formulas combined with average US market assumptions. Real results depend on your personal circumstances, so treat the output as a starting point and confirm with a qualified professional. Read more on our methodology page.
Frequently asked questions
Margin vs markup?
Margin is a percentage of selling price, markup a percentage of cost.
What is a good margin?
It depends on the industry. Retail often sees 20 to 50 percent.
Is the profit margin calculator free to use?
Yes. Every calculator on 100tools is free with no registration.
Do you store the numbers I enter?
No. Calculations run in your browser and nothing you type is sent to our servers.