Metric BMI Calculator

Calculate your Body Mass Index (BMI) using metric units (kg/cm). Free online, no sign-up, secure client-side calculation.

Weight (kg) *

Height (cm) *

Age (for body fat estimate)

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Body Fat % (Navy Method) Uses neck, waist & hip measurements

Neck circumference (cm)

Waist circumference (cm)

Hip circumference (cm)

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Body Mass Index

UnderweightNormal weightOverweightObese IObese IIObese III

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BMI Prime

📐

Ponderal Index

⚖️

Healthy Weight

🫁

Body Fat %

🧈

Fat Mass

💪

Lean Mass

Calculate your Body Mass Index (BMI) using metric units (kg/cm). Free online, no sign-up, secure client-side calculation.