About BMI Calculator
BMI Calculator evaluates your Body Mass Index based on your height and weight, categorizing the result into standard classifications such as underweight, normal, overweight, or obese. BMI is a widely recognized screening tool used by healthcare professionals to identify potential weight-related health risks. By simply inputting your measurements, this tool calculates your index instantly and indicates your category. It supports both metric (kg/cm) and imperial (lbs/ft) measurement systems for convenience. All health calculations are strictly local, meaning your personal biometric data never leaves your browser and is never stored.
Key Benefits
- 100% private calculation, no tracking.
- Supports Metric and Imperial units.
- Instant visual categorisation.
- Helpful for initial health screening.
How to use
- Select Unit System
Choose Metric or Imperial measurements.
- Enter Details
Input your exact height and weight.
- View BMI
Your Body Mass Index is calculated instantly.
- Review Category
Understand where you fall on the standard BMI chart.
Frequently Asked Questions
Is my health data stored?
No. All calculations run strictly in your browser and disappear when you close the tab.
Is BMI an accurate measure of health?
BMI is a general screening tool, but it does not measure body fat directly or account for muscle mass.
What are the standard BMI categories?
Typically: Under 18.5 (Underweight), 18.5-24.9 (Normal), 25-29.9 (Overweight), 30+ (Obese).
Can athletes use BMI?
Athletes with high muscle mass may have a high BMI without having high body fat.
Does age affect BMI?
The standard adult BMI chart is generally applied to individuals aged 20 and older.