Business calculators that don't waste your time.
Profit margin, ROI, markup, discounts, break-even — pick a calculator, get the number, get back to running your business.
All calculators
Each one runs entirely in your browser. Your numbers never leave your computer.
Profit Margin Calculator
Calculate gross, operating, and net profit margins from revenue and costs.
Open calculatorMarkup Calculator
Convert between markup and margin. Set selling prices from cost in one step.
Open calculatorDiscount Calculator
Apply percentage or flat discounts to any price. Save the result as a sale price.
Open calculatorROI Calculator
Return on investment, payback period, and annualized ROI in one place.
Open calculatorBreak-Even Calculator
Find the units or revenue you need to cover fixed and variable costs.
Open calculatorCOGS Calculator
Track cost of goods sold across inventory, materials, and overhead.
Open calculatorInstant, in-browser
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Formulas you can see
Every calculator shows the formula. No black-box magic.