Calculator Online
AI Tools
Health
Math
Everyday Life
Finance
Physics
Chemistry
Statistics
Construction
Pets
Time & Date
Conversion Calculator
Sign InPages
Category
Follow Us On:
Calculator Online
Pages
Category
Follow Us On:
Select your gender and provide your body dimensions. The free BMI calculator will estimate your body mass index and let you know in which category your weight falls.
Related Calculator
A smart BMI calculator helps you determine your body mass index (BMI) and corresponding weight category. This tool allows you to calculate BMI for men, women, teens, and children.
Use this calculator to find out whether your BMI falls into normal, underweight, overweight, or obese categories. You can enter your weight in pounds (lbs) or kilograms (kg) and your height in feet & inches or centimeters to get accurate results.
Body Mass Index (BMI) is a measure that evaluates body weight relative to height.
BMI is a screening tool and does not directly measure body fat. It is primarily used to estimate whether a person is underweight, at a healthy weight, overweight, or obese. It can also help track weight gain or loss over time. For more details, you can see our weight loss calculator.
For Adults:
The World Health Organization (WHO) defines BMI categories for adults (20 years and older, men and women) as follows:
| Category | Healthy 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 Chart for Adults (Men & Women):
For Children:
For children and teenagers, the CDC (Centers for Disease Control and Prevention) defines BMI percentiles to evaluate weight categories:
| Category | Percentile Range |
|---|---|
| Underweight | < 5% |
| Healthy Weight | 5% - 85% |
| At Risk of Overweight | 85% - 95% |
| Overweight | > 95% |
BMI Chart for Kids & Teens (Boys):
.webp)
BMI Chart for Kids & Teens (Girls):
.webp)
A BMI of 25 kg/m² or higher indicates overweight and may increase the risk of:
Being underweight may indicate malnutrition and can lead to:
There is no single “perfect” BMI as healthy ranges vary by age, gender, and body composition. Use the BMI calculator above to determine your personal range and category.
To keep a healthy BMI, follow these steps:
This online BMI calculator provides estimates for educational purposes only. The results are not a substitute for professional medical advice, diagnosis, or treatment. Always consult a healthcare professional to understand your health status and reach your goals, including achieving your ideal weight.
Sources include Wikipedia: Body Mass Index – covering categories for children (ages 2–20), international variations, and health relationships. Also referenced from WebMD: What Is a Healthy Weight – detailed information about weight categories and healthy ranges.
Other Languages: حساب كتلة الجسم, Calculadora IMC, Calcul Imc, Калькулятор ИМТ, Calcolo BMI, BMI 計算, BMI Rechner, BMI kalkulačka, Calculo IMC, Painoindeksilaskuri, Kalkulator BMI, Vücut Kitle Indeksi Hesaplama, Kalkulator BMI
Related Calculator
Add this calculator to your site.
×Just copy a given code & paste it right now into your website HTML (source) for suitable page.
Preview:
Easter into Action, Save With Satisfaction
UPTO
50 %
OFF
Give Us Your Feedback
Share Result
BMI Calculator
Links
Home Conversion Calculator About Calculator Online Blog Hire Us Knowledge Base Sitemap Sitemap TwoEmail us at
Contact Us© Copyrights 2026 by Calculator-Online.net
