What is BMI?
BMI (Body Mass Index) is a number calculated from your weight and height. It is used to determine whether you are underweight, normal weight, overweight or obese.
How BMI is Calculated
BMI is calculated by dividing your weight in kilograms by your height in meters squared. Our BMI calculator does this automatically for you.
BMI Categories
- Underweight: Below 18.5
- Normal weight: 18.5 – 24.9
- Overweight: 25 – 29.9
- Obese: 30 and above
Why Use Our BMI Calculator?
- Accurate BMI calculation
- Supports cm and feet & inches
- Instant result
- 100% free
Frequently Asked Questions
Yes. It uses the standard medical BMI formula used by doctors.
Yes. Select Feet & Inches and enter your height to calculate BMI.
Yes. OnlineToolLab BMI calculator is completely free.