BMI Calculator
BMI Inputs (US Units)
Ages 2 – 120. Adult categories are used for BMI interpretation.
lbs
Result
BMI = 0.0
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Category
Healthy BMI range (adults): 18.5 – 25 kg/m²
Healthy Weight Range
For this height, healthy weight:
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BMI Prime:
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Ponderal Index
Ponderal Index:
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Useful alongside BMI, especially for very tall or short individuals.
Notes
BMI is a screening tool only and does not directly measure body fat. It can be misleading for athletes, very muscular people, or those at the extremes of height.
Children and teens (age 2–19) should use BMI-for-age charts and consult a healthcare professional for assessment.