Advanced BMI Calculator
Calculate your Body Mass Index with precision using our advanced tool. Get detailed insights about your health status.
Your Information
Metric (cm, kg)
Imperial (ft, lbs)
Height
cm
Weight
kg
Height (Feet & Inches)
Weight
lbs
Additional Information
Your Results
23.2
Normal Weight
Underweight
< 18.5 Normal
18.5 - 24.9 Overweight
25 - 29.9 Obese
≥ 30
< 18.5 Normal
18.5 - 24.9 Overweight
25 - 29.9 Obese
≥ 30
Healthy BMI Range
18.5 - 24.9
Weight Status
Normal
Ideal Weight Range
53.5 - 72.3 kg
Body Fat Estimate
Age-based
20.1%
About BMI Calculator
What is BMI?
Body Mass Index (BMI) is a simple calculation using a person's height and weight. The formula is BMI = kg/m² where kg is a person's weight in kilograms and m² is their height in meters squared.
BMI provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
How It Works
Our advanced BMI calculator uses the standard BMI formula but provides additional insights:
- Calculates your exact BMI value
- Categorizes your weight status
- Estimates body fat percentage
- Suggests ideal weight range
- Works with both metric and imperial units
Who Should Use It
BMI calculator is useful for:
- Adults aged 20+ for general health screening
- Individuals tracking weight loss/gain progress
- Healthcare professionals for patient assessment
- Fitness enthusiasts monitoring body composition
Note: Not suitable for athletes, pregnant women, children, or the elderly.
BMI Categories
| Category | BMI Range | Health Risk |
|---|---|---|
| Underweight | < 18.5 | Increased risk |
| Normal Weight | 18.5 - 24.9 | Lowest risk |
| Overweight | 25 - 29.9 | Increased risk |
| Obese | ≥ 30 | High risk |
Frequently Asked Questions
Is BMI accurate for athletes?
BMI may not be accurate for athletes because it doesn't distinguish between muscle and fat. Athletes with high muscle mass may have a high BMI but low body fat percentage.
How often should I check my BMI?
For most people, checking BMI once a month is sufficient when trying to lose or gain weight. For general health monitoring, checking every 3-6 months is adequate.
What are the limitations of BMI?
BMI doesn't account for muscle mass, bone density, overall body composition, and racial/sex differences. It should be used as a screening tool, not a diagnostic tool.
Can children use this calculator?
No, this calculator is designed for adults (20+ years). Children and teenagers require age and sex-specific percentiles for accurate assessment.
