BMI Calculators

BMI Calculators Overview

BMI Calculators are tools for calculating body mass index (BMI), which is an index indicating the degree of obesity. BMI is calculated by the formula of weight and height. If your height is t meters and your weight is w kilograms, your BMI can be expressed by the following formula:¹

BMI = w/t²

You can calculate your BMI immediately by entering your height and weight in the blanks of the BMI calculators below. For your convenience, I provide both a BMI calculator based on the metric system (cm and kg) and a BMI calculator based on the imperial system (inches and pounds). You can check your current obesity level by comparing the results obtained with the BMI calculator with the obesity criteria that follow.

BMI Calculator (cm-kg)

BMI Calculator (inch-pound)

Interpretation and Obesity Criteria

• World Health Organization²
  • Severe obesity (stage 3 obesity): 40 or more
  • Moderate obesity (stage 2 obesity): 35 – 39.9
  • Mild obesity (stage 1 obesity): 30 – 34.9
  • Overweight: 25 – 29.9
  • Normal: 18.5 – 24.9
  • Underweight: less than 18.5

Articles about BMI Calculators

Below is a list of articles to keep you up to date on BMI calculations and obesity. Don’t miss out on the latest information.

(Dr. Shin’s Notes only provides links to the articles, and all responsibility for the articles rests with each media company.)

More Calculators

You can find more calculators useful in your daily life in the Tools category. They are developed to improve your health as well as your work efficiency. If you have a calculator idea you’ve always needed, please let me know in the comments. I’ll try to develop it for you.