Enter height (cm) and weight (kg). Choose a standard to calculate BMI, category, risk level, and healthy weight range.
BMI (Body Mass Index) evaluates whether weight matches height. It is calculated as weight (kg) divided by height (m) squared.
Because body composition varies across populations, Asian and international standards use different normal ranges. This tool supports both.
BMI is useful for adult screening but does not directly reflect body fat distribution or muscle mass.
If BMI is outside the normal range, consider waist circumference, body fat percentage, and lifestyle factors for a fuller picture.
All calculations run locally in your browser and no personal data is stored.
| Category | Asian Standard | International Standard |
|---|---|---|
| Underweight | <18.5 | <18.5 |
| Normal | 18.5-23 | 18.5-24.9 |
| Overweight | 23-27.5 | 25-29.9 |
| Obese | ≥27.5 | ≥30 |
The table below shows common BMI categories used to generate results and guidance.
BMI is a screening tool for adults and may be less accurate for athletes, pregnant people, or children.
Health risks may occur at lower BMI values in Asian populations, so the normal upper limit is lower.
Kilograms are the most widely used standard unit, making results easier to compare globally.
Not necessarily. Consider waist size, body fat percentage, and activity level for a more complete assessment.
Improve diet quality, increase activity, and maintain regular sleep. Seek professional guidance if needed.
Low BMI may indicate low energy intake or muscle mass. Focus on balanced nutrition and healthy routines.
No. All calculations stay in your browser and are not stored.
The range is calculated from the selected normal BMI interval and your height, shown in kilograms.
Calculate BMI with Asian or international standards and get category, risk, and healthy weight range.
Scan to use on mobile.