BMI Calculator: Calculate your Body Mass Index (BMI) easily. Estimate your healthy body weight for a healthier lifestyle.
The body mass index (BMI) is calculated with the following formula: BMI = weight(kg) / height(m)2. If pounds and inches are used, a conversion factor of 703 (kg/m2)/(lb/in<2) must be applied.
The new BMI. In 2013 Lloyd N. Trefethen, professor of University of Oxford, proposed a new formula to calculate the BMI of a person: BMI = 1.3 x weight / height2.5. The same conversion factor applies for pounds and inches.
Category
BMI range
Starving
< 16
Underweight
16 - 18.5
Normal
18.6 - 25
Overweight
25.1 - 30
Obese
30.1 - 35
Clinically Obese
35.1 - 40
Morbidly Obese
> 40.1
Playful learning for kids. Get the App!
TeddyBase is a playful educational app for iPhone and iPad, developed by calkoo.com team — perfect for kids and families to explore, learn, and imagine together! Learn colours, letters, shapes and more!
Body Mass Index
BMI Calculator: Calculate your Body Mass Index (BMI) easily. Estimate your healthy body weight for a healthier lifestyle.
The body mass index (BMI) is calculated with the following formula: BMI = weight(kg) / height(m)2. If pounds and inches are used, a conversion factor of 703 (kg/m2)/(lb/in<2) must be applied.
The new BMI. In 2013 Lloyd N. Trefethen, professor of University of Oxford, proposed a new formula to calculate the BMI of a person: BMI = 1.3 x weight / height2.5. The same conversion factor applies for pounds and inches.