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BMI Calculator

Body Mass Index with healthy weight range — metric or imperial.

BMI

22.9

Category

Normal weight

Healthy weight (kg)

56.7–76.3

Healthy weight (lb)

124.9–168.1

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What this means

Understanding BMI

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What BMI measures

Body Mass Index is weight (kg) ÷ height² (m). It screens for weight categories — it does not measure body fat directly and can misclassify athletes with high muscle mass.

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Health risks above normal

Higher BMI ranges correlate with increased risk of type 2 diabetes, heart disease, sleep apnea, and joint stress. A single number is not a diagnosis — talk to a clinician for personalized assessment.

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Moving toward a healthy range

Sustainable changes beat crash diets: balanced nutrition, regular movement, sleep, and stress management. Fitness Studio and Celeste can help build a realistic plan when you want personalized coaching.

Need expert help?

Build a realistic wellness plan

Fitness Studio with Derek creates periodized programs — not just a number on a scale.

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Sign in to chat with Zara and build audit-ready plans in the studio.

BMI is a screen, not a diagnosis

BMI correlates with population health risks but ignores muscle mass and body composition.

Use it as one data point alongside waist circumference, labs, and clinical advice.