BMI Calculator

BMI calculation with Japan obesity classification.

22.5BMI
Normal weightClassification
63.6kgIdeal weight
53.5〜72.3kgHealthy range
広告スペース 1

How to use

  1. Enter your height in centimeters.
  2. Enter your weight in kilograms.
  3. Click the calculate button.
  4. View BMI and classification.

About this tool

The BMI Calculator computes Body Mass Index from your height and weight and interprets the result using the classification published by the Japan Society for the Study of Obesity. It also suggests an ideal weight based on a BMI of 22.

Features

Instant calculation, Japan-specific obesity levels, ideal weight suggestion, and clear explanation of each category. Inputs are in centimeters and kilograms for convenience in Japan.

Use cases

Useful for individuals tracking their fitness, dietitians advising clients, health check-up preparation, school health education, and anyone curious about where their current weight falls on the BMI scale.

Why this tool

Many BMI calculators use Western classifications that differ from Japanese medical standards. This tool provides a localized interpretation so the guidance matches the advice you would receive at a Japanese health check-up.

広告スペース 2

FAQ

What classification is used?
The Japan Society for the Study of Obesity classification is used.
What is a healthy BMI?
A BMI between 18.5 and 25 is generally considered healthy.
Does it show ideal weight?
Yes, the ideal weight based on BMI 22 is also displayed.