Home Higher or Lower All Tools Tip Calculator Percentage Calculator Roman Numerals Loan Calculator Compound Interest Lorem Ipsum Discount Calculator GPA Calculator Hours Calculator Sales Tax Calculator Average Calculator Random Name Picker Percent Change Calculator MPG to L/100km Ratio Calculator Random Number Generator Fraction Calculator KM/H to MPH Hourly to Salary Binary to Decimal Decimal to Fraction Pace Calculator Square Footage Scientific Notation BMR Calculator Dice Roller Final Grade Unit Price Add Days to Date Body Fat Due Date Time Zones Password Strength Business Days Timer Stopwatch Age in Days Days Until Pomodoro Sleep Margin Fuel Cost Speed Distance Time VAT Savings Goal Electricity Cost Aspect Ratio Overtime Pay Download Time Cooking Converter PPI Tip Split Speed Converter Ovulation Length Converter Temperature Converter Data Storage Weight Converter Volume Converter Area Converter Pressure Converter Energy Converter Power Converter Time Converter Shoe Size Ring Size Angle Converter Frequency Converter Force Converter Clothing Size Torque Converter
BMI Calculator
Metric (kg, cm) Imperial (lbs, ft/in)
Weight (kg) Height (cm)
Weight (lbs) Height (feet) Height (inches)
BMI categories (WHO, adults)
BMI Category under 18.5 Underweight 18.5 – 24.9 Normal weight 25 – 29.9 Overweight 30 or more Obesity
How it works BMI = weight in kg ÷ (height in metres)². With pounds and inches: BMI = 703 × pounds ÷ inches². BMI is a rough screening number for adults; it does not distinguish muscle from fat and is not a diagnosis. Talk to a health professional about your own situation.
FAQ Is my data stored? No, everything is calculated in your browser.
See also: kg to lbs · cm to feet · lbs to kg · feet to cm
Free, private, runs entirely in your browser. Nothing is uploaded. For information only, not medical advice.