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
17.6 kg/m²
BMI Prime: 0.70 | Ponderal Index: 17.5

BMI Classifications for Adults

ClassificationBMI Range (kg/m²)
Severe Thinness< 16
Moderate Thinness16 - 17
Mild Thinness17 - 18.5
Normal18.5 - 25
Overweight25 - 30
Obese Class I30 - 35
Obese Class II35 - 40
Obese Class III> 40

BMI for Children and Teens (2-20 years)

CategoryPercentile Range
Underweight< 5%
Healthy weight5% - 85%
At risk of overweight85% - 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

ClassificationBMIBMI Prime
Severe Thinness< 16< 0.64
Moderate Thinness16 - 170.64 - 0.68
Mild Thinness17 - 18.50.68 - 0.74
Normal18.5 - 250.74 - 1
Overweight25 - 301 - 1.2
Obese Class I30 - 351.2 - 1.4
Obese Class II35 - 401.4 - 1.6
Obese Class III> 40> 1.6

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

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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