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Ideal weight formulas (Robinson, Devine) give population-based estimates of healthy weight for height. They are guides, not targets — muscle mass and body composition cause significant individual variation.

Formule

Ideal body weight (IBW) = 50 kg + 2.3 kg per inch over 5'0" (women); 50 kg + 2.7 kg per inch over 5'0" (men); BMI = Weight / (Height^2) for BMI-based estimate

Height: Height in inches or cm (Inches or cm)
IBW: Ideal body weight (kg)
BMI: Body mass index (kg/m² (18.5–24.9 normal))

Stapsgewijze handleiding

1Robinson (men): 52 + 1.9 × (height_inches − 60)
2Robinson (women): 49 + 1.7 × (height_inches − 60)
3BMI 18.5–24.9 gives a broader healthy weight range
4Athletes often weigh more due to muscle mass

Uitgewerkte voorbeelden

Invoer

Female, 165cm (65")

Resultaat

Robinson: 57.5 kg; BMI healthy range: 50.5–67.9 kg

Veelgestelde vragen

Is ideal body weight realistic for everyone?

Estimates are rough. Genetics, muscle mass, bone density vary widely. Someone at 110% IBW may be perfectly healthy (athletic, muscular). Use as guide, not target.

What if I'm muscular and BMI says overweight?

BMI doesn't distinguish muscle from fat. Athletes often "overweight" by BMI but lean. Use body composition (DEXA, calipers), photos, how clothes fit. BMI supplementary.

Should I focus on BMI or weight?

Health markers (blood pressure, cholesterol, glucose, inflammation) more important than absolute weight. You can be "overweight" BMI but metabolically healthy. Focus on feeling strong/energetic.

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