← Back to more tools
HEALTH TOOL / 92

Put the number
in context.

Calculate adult BMI from height and weight in metric or imperial units, then see the standard category and healthy-weight range used for adults 20 and older.

BMI calculator

ADULT BMI SCREENING

Enter two measurements.

No health data upload

Local screening estimate · adults 20+ only

YOUR BMI22.9Healthy weight

This falls in the adult BMI range of 18.5 to 24.9.

Healthy weight range56.7–76.3 kg
Formulakg ÷ m²
REFERENCE SCALEAdult categories
Underweight
< 18.5
Healthy
18.5–24.9
Overweight
25–29.9
Obesity
30+

BMI is a screening measure, not a diagnosis. It does not account for muscle mass, pregnancy, age, sex, or where fat is distributed. For children and teens, use an age-and-sex percentile tool and discuss health questions with a qualified clinician.

Advertisement
QUICK ANSWERS
Who is this BMI calculator for?

This page follows the adult BMI categories for people 20 and older. BMI for children and teens uses age-and-sex percentiles instead, so this page does not classify them.

How is BMI calculated?

BMI is weight in kilograms divided by height in metres squared. Imperial pounds and feet/inches are converted before applying the same formula.

Does a BMI category diagnose health?

No. CDC and NHLBI describe BMI as a screening measure that should be considered with other information such as medical history, physical examination, and laboratory findings.