BMI Calculator

YOur RESULT

0

Metric

Imperial

Weight

0 pounds

Height

0 feet | 0 inches

YOUR BMI

YOUR BODY MASS INDEX

0

very serious
  • Very serious lack of weight — < 16.0
  • Serious lack of weight — < 16.0 - 16.9
  • Lack of weight — < 17.0 - 18.4
  • Health weight — < 18.5 - 24.9
  • Overweight — < 25.0 - 29.9
  • Obesity — > 30.0

What is BMI?

Formula for calculating BMI

  1. Metric: BMI = Weight (kg) / [Height (m)]2
  2. Imperial: BMI = Weight (lbs) / [Height (in)]2

BMI chart for women & men (adult)

Source: Centers for Disease Control and Prevention

MenWomenStatus
<20.7<19.1Underweight
20.7 - 26.419.1 - 25.8Normal (Healthy)
26.4 - 27.825.8 - 27.3Marginally overweght
27.8- 31.127.3 - 32.3
Overweight
>31.1>32.3Obese

Healthy body mass index for kids by age

AgeBoysGirls
613.2 - 18.812.9 - 18.3
713.4 - 19.8
13.2 - 19.1
813.7 - 20.913.5 - 20.1
913.9 - 21.8
13.8 - 21.0
1014.2 - 22.7
14.2 - 21.9
1114.6 - 23.6
14.5 - 22.7
1214.9 - 24.3
14.9 - 23.4
1315.2 - 25.0
15.2 - 24.0
1415.5 - 25.5
15.6 - 24.6
1515.9 - 26.1
15.9 - 25.0
1616.2 - 26.5
16.2 - 25.4
1716.4 - 27.0
16.5 - 25.7
1816.7 - 27.4
16.7 - 25.9

World Health Organization body mass index (BMI) classifications

CategoryBMI
Severe thinnes<16.0
Moderate thinnes16.0 - 16.9
Mild thinnes17.0 - 18.49
Normal (healthy) range18.5 - 24.9
Overweight>25.0
Preobese25.0 - 29.9
Obese class I30.0 - 34.9
Obese class II35.0 - 39.9
Obese class III>40.0