BMI Calculator for 18kg and 101cm
Calculate BMI for 18kg weight and 101cm height. BMI value is 17.6 (Underweight).
17.6
Your BMI Category: Underweight
Weight
18kg
Height
101cm
17.6
Underweight
< 18.5
Underweight
18.5 - 24.9
Normal weight
25.0 - 29.9
Overweight
≥ 30.0
Obese
43 OFF
17.6 kg/m²
BMI Prime: 0.70 | Ponderal Index: 17.5
BMI Classifications 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 |
BMI for Children and Teens (2-20 years)
Category | Percentile Range |
---|---|
Underweight | < 5% |
Healthy weight | 5% - 85% |
At risk of overweight | 85% - 95% |
Overweight | > 95% |
BMI Formulas
Metric Formula
BMI = weight(kg) / height(m)²
Imperial Formula
BMI = 703 × weight(lb) / height(in)²
BMI Prime Classifications
Classification | BMI | BMI Prime |
---|---|---|
Severe Thinness | < 16 | < 0.64 |
Moderate Thinness | 16 - 17 | 0.64 - 0.68 |
Mild Thinness | 17 - 18.5 | 0.68 - 0.74 |
Normal | 18.5 - 25 | 0.74 - 1 |
Overweight | 25 - 30 | 1 - 1.2 |
Obese Class I | 30 - 35 | 1.2 - 1.4 |
Obese Class II | 35 - 40 | 1.4 - 1.6 |
Obese Class III | > 40 | > 1.6 |
Related BMI Calculations
Gender-Specific BMI Information
Health Recommendations
Your BMI Results
With a BMI of 17.6, you are classified as underweight. Consider consulting with a healthcare provider about healthy ways to gain weight.
Next Steps
• Track your BMI over time to monitor changes
• Consider consulting with healthcare professionals
• Combine BMI with other health measurements
• Check age-specific BMI recommendations
BMI by Age Group
Common BMI Calculations
Understanding BMI Ranges
Normal Weight Range
Range: 18.5 - 24.9
A healthy weight range based on your height.
Health Implications
BMI is one of several factors in assessing overall health.
Weight Changes
Track BMI changes over time for better health monitoring.
Additional Factors
Consider age, gender, muscle mass, and body composition.
About this Calculator
Calculate BMI for 18kg weight and 101cm height. BMI value is 17.6 (Underweight).
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