BMI Calculator
Calculate your Body Mass Index (BMI) from weight and height. Check if your weight is in a healthy range.
How It Works
BMI is calculated as weight (kg) ÷ height (m)². It's a quick screening tool to determine if your weight is healthy for your height. We also calculate your ideal weight range based on a healthy BMI.
Example
For a person who is 175 cm tall and weighs 70 kg, BMI = 70 ÷ (1.75)² = 22.9 (Normal weight).
Frequently Asked Questions
How do I calculate my BMI?
BMI = Weight (kg) ÷ Height (m)². For imperial units: BMI = (Weight (lbs) × 703) ÷ Height (in)². A healthy BMI is typically 18.5-24.9.
What is a healthy BMI?
A healthy BMI is between 18.5 and 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese. However, BMI doesn't account for muscle mass.
Is BMI accurate?
BMI is a useful screening tool but doesn't distinguish between muscle and fat. Athletes may have high BMI due to muscle. Use BMI alongside other measurements.