BMI Calculator
Modify the values and click the calculate button to use
Metric Units
US Units
Other Units
ages: 2 – 120
Result
20.1 kg/m²
(Normal)
16
17
18.5
25
30
35
40
Underweight
Normal
Overweight
Obesity
BMI:
20.1
Healthy BMI range:
18.5 kg/m² – 25 kg/m²
Healthy weight for the height:
59.9 kg – 81 kg
BMI Prime:
0.8
Ponderal Index:
11.1 kg/m³
BMI Introduction
BMI is a measurement of a person’s leanness or corpulence based on their height and weight, and is intended to quantify tissue mass. It is widely used as a general indicator of whether a person has a healthy body weight for their height.
BMI Table for Adults
| Classification | BMI Range – kg/m² |
|---|---|
| Severe Thinness | < 16 |
| Moderate Thinness | 16 – 17 |
| Mild Thinness | 17 – 18.5 |
| Normal | 18.5 – 25 |
| Overweight | 25 – 30 |
| Obese Class I | 30 – 35 |
| Obese Class II | 35 – 40 |
| Obese Class III | > 40 |
Risks Associated with BMI
Risks of Being Overweight
- High blood pressure
- Type II diabetes
- Coronary heart disease
- Stroke
- Certain cancers
Risks of Being Underweight
- Malnutrition
- Osteoporosis
- Decreased immune function
- Reproductive issues
- Growth and development issues
BMI Formula
BMI = mass (kg) / height² (m)
BMI Prime
BMI Prime = BMI / 25
Ponderal Index
PI = mass (kg) / height³ (m)
Use Our Other Tools: CGPA To Percentage Calculator (CGPA Calculator)