計算ツール

BMI計算

成人のBMIを参考値として計算します。

入力内容

UtilBrix が提供

結果

BMI
24.22
Adult category
Healthy weight
Reference weight range
53.5–72.0 kg

Adult screening reference only; not a diagnosis. BMI does not account for body composition, pregnancy, or individual health. A qualified clinician can interpret your situation.

詳しい方法と使用例は英語で提供しています。

Step-by-step instructions (English)

  1. Select height and weight units before entering the measurements.
  2. For feet and inches, enter both fields rather than treating inches as a decimal fraction of feet.
  3. Calculate and read BMI alongside the adult reference information and limitations.

計算式と方法

BMI is weight in kilograms divided by height in metres squared. Adult reference categories are below 18.5, 18.5–24.9, 25–29.9, and 30 or more. The reference weight range uses BMI values of 18.5 and 24.9 at the entered height. BMI is a screening measure, not a diagnosis.

使用例

At 170 cm and 70 kg, BMI is approximately 24.22. These general adult reference ranges are not intended for children, pregnancy, or personalized medical assessment.

When this tool is useful

Calculate the relationship between an adult height and weight or compare the same measurements in metric and imperial units. Use the result as a screening reference to discuss with a clinician, not as a personal target weight or diagnosis.

Common mistakes and limitations

  • Adult BMI categories are not appropriate for assessing children or adolescents.
  • BMI does not distinguish muscle from fat or capture individual body composition; pregnancy also requires different assessment.

Practical questions about this tool (English)

Does a BMI category diagnose a health condition?

No. BMI is one screening measure. Individual assessment can require medical history, other measurements, and clinical judgment. A category alone cannot establish a diagnosis.

Why does the reference weight range change with height?

The range is calculated by multiplying fixed adult BMI thresholds by height in metres squared. It is a mathematical reference for the entered height, not an individualized recommendation.

References and further reading

BMI is an adult screening reference, not a medical diagnosis. For personal health decisions, consult a qualified clinician. Read the health disclaimer.

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