Calculate Your BMI
Enter your age, height and weight. Choose the measurement system that is easiest for you.
Adult BMI Categories
For adults, BMI is commonly interpreted using the following categories.
| Category | BMI Range | General Interpretation |
|---|---|---|
| Underweight | Below 18.5 | Below standard healthy-weight range |
| Healthy Weight | 18.5β<25 | Standard healthy-weight range |
| Overweight | 25β<30 | Above standard healthy-weight range |
| Obesity Class 1 | 30β<35 | Obesity category |
| Obesity Class 2 | 35β<40 | Obesity category |
| Obesity Class 3 | 40+ | Obesity category |
How Does the BMI Calculator Work?
Enter Your Age
Enter your age. This calculator is designed for adults aged 20 and above.
Select Units
Choose Metric or US Units.
Enter Height & Weight
Use accurate measurements.
Calculate
The calculator converts units when needed and calculates BMI.
Understand Your Result
Review the score, category, healthy weight range and additional measurements.
How Is BMI Calculated?
For US customary units, BMI is weight in pounds divided by height in inches squared, multiplied by 703.
Understanding BMI Limitations
BMI is a screening measure; it does not directly measure body fat or distinguish muscle, bone and fat. Results should be considered with other health information.
Frequently Asked Questions
What does BMI stand for?
BMI stands for Body Mass Index.
What is a healthy BMI for adults?
A BMI from 18.5 to less than 25 is generally classified as healthy weight for adults.
Can BMI tell me how much body fat I have?
No. BMI does not directly measure body fat.
Does this calculator work for children?
No. This version is designed for adults 20 and older; children and teens require age- and sex-specific BMI-for-age interpretation.
Is BMI a diagnosis?
No. BMI is a screening measure, not a diagnosis.
Fitness & Health Disclaimer
The DigiSadhan BMI Calculator is for general educational and informational purposes only. It is not intended to diagnose, treat, cure or prevent any disease or medical condition and is not a substitute for professional medical advice.
BMI does not directly measure body fat and may not accurately represent health status for athletes, pregnant individuals, or people with certain medical conditions.
Consult a qualified healthcare professional for personal health, nutrition, exercise or medical decisions.