BMIの計算方法

BMI 計算:BMI = 体重(kg) / (身長(m))^2。手順:単位を選択して換算、BMI を計算し分類を表示。例:70kg と 175cm → BMI 22.9(正常)。

BMIの計算方法

何ですか:あなたのBMI(ボディマス指数)を計算して、体重が健康かどうか評価します。使い方:体重と身長を入力して、「計算」をクリックしてください。利用シーン:健康診断、フィットネス計画、体重管理。

BMIカテゴリー

< 18.5
低体重
18.5 - 24.9
標準
25 - 29.9
肥満
≥ 30
高度肥満

Frequently asked questions

What is the BMI formula?

Metric BMI = weight(kg) / height(m)². Imperial uses BMI = 703 × weight(lb) / height(in)².

What do the BMI categories mean?

Common adult cutoffs: underweight <18.5, normal 18.5–24.9, overweight 25–29.9, obese ≥30. Categories are screening aids, not diagnoses.

Is BMI accurate for athletes?

BMI does not distinguish muscle from fat. Athletes may have a high BMI with low body fat — ask a clinician for individual assessment.

Important notice

This BMI calculator is for educational screening only and is not medical advice. It does not diagnose disease or replace care from a qualified health professional.

References: WHO adult BMI classification guidance; standard metric and imperial BMI formulas used in clinical screening tools.