Adult BMI Calculator
Based on CDC adult BMI categories. Enter height and weight to see your BMI and where it falls on the spectrum.
Inputs
Switch units anytime—values convert automatically.
kg
cm
feet & inches
Your BMI
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Enter height & weight.
Classification
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CDC adult categories.
Healthy Range (18.5 – 24.9)
Target: —
Weight range for your height.
Your BMI on the Adult Spectrum
Adult BMI categories follow widely used CDC thresholds: Underweight (<18.5), Healthy (18.5–24.9), Overweight (25–29.9), Obesity (≥30; Classes I: 30–34.9, II: 35–39.9, III: ≥40).
BMI is a screening tool—not a diagnosis. Talk to a clinician for personalized advice.