BMI Calculator - Body Mass Index (Metric & Imperial)

Calculate Body Mass Index from height and weight - metric (cm/kg) or imperial (ft·in/lb)

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注意: 下記のツールインターフェースは現時点で英語のみに対応しています。UI の翻訳は順次進めています。 このツールを英語で見る →
Your BMI
23.5
Healthy weight
BMI ranges (WHO adults): under 18.5 underweight · 18.5–24.9 healthy · 25–29.9 overweight · 30+ obesity. BMI is a screening tool, not a diagnosis - it doesn't distinguish muscle from fat.
あくまで推定値です。 計算結果は入力値に基づく一般的な式から生成された、情報提供のみを目的とするものです。金融、税務、法律、医療、または専門的な助言ではなく、個々の状況、管轄、税金、手数料、健康状態を考慮していません。重要な数値は必ず有資格の専門家に確認してください。本ツールの利用により、以下に同意したものとみなされます: 利用規約と免責事項.

使い方

  1. 1
    Pick your units

    Choose metric (cm and kg) or imperial (feet/inches and pounds).

  2. 2
    Enter height and weight

    Type your values in the labeled fields - BMI updates instantly.

  3. 3
    Read the category

    See your BMI value and the World Health Organization classification: underweight, healthy, overweight, or obesity class I/II/III.

BMI Calculator - Body Mass Index (Metric & Imperial) について

Free BMI (Body Mass Index) calculator. Enter your height and weight in metric (cm and kg) or imperial (feet, inches, and pounds) units to instantly see your BMI and the WHO classification: underweight, healthy weight, overweight, or obesity. Includes the full BMI formula and interpretation ranges. Runs entirely in your browser. 712 Tools の BMI Calculator - Body Mass Index (Metric & Imperial) はモダンな JavaScript API を使って完全にブラウザ内で動作します - サーバーがあなたのデータを見ることは一切ありません。つまり、即時の結果、完全なプライバシー、アップロード制限なしです。

デバッグ、簡単な確認、あるいは本番のインシデント対応まで - このツールは何度でも無料で使えます。ウォーターマークなし、サインアップなし、ツール内広告なし。

よくある質問

What is the BMI formula?

Metric: BMI = weight (kg) ÷ height (m)². Imperial: BMI = (weight in lb ÷ height in inches²) × 703.

What are the BMI ranges?

WHO adult ranges: under 18.5 = underweight, 18.5–24.9 = healthy, 25–29.9 = overweight, 30–34.9 = obesity I, 35–39.9 = obesity II, 40+ = obesity III.

Is BMI accurate for everyone?

BMI is a screening tool, not a diagnosis. It doesn't distinguish muscle from fat, so athletes and very muscular people may be classified as overweight even when they are lean. Talk to a healthcare provider for a full assessment.

Is my data uploaded?

No. All calculations run entirely in your browser.

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