BMI Categories
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 - 24.9 | Normal weight |
| 25 - 29.9 | Overweight |
| 30 and above | Obese |
Understanding BMI
Your BMI: 25.8 (Overweight)
Body Mass Index (BMI) is a simple calculation using height and weight. It provides a reliable indicator of body fatness for most people and is used to screen for weight categories that may lead to health problems.
Formula
BMI = weight (kg) / height (m)2
Imperial formula: 703 × weight (lbs) / height (in)2
💡 Limitations: BMI doesn't distinguish between muscle and fat, doesn't account for age/gender, and may misclassify athletes as overweight.
BMI Limitations
While BMI is a useful screening tool, it has significant limitations:
- Muscle mass: Athletes may have high BMI from muscle, not fat
- Age: Older adults may have healthy BMI even with some body fat
- Gender: Women typically have more body fat than men at same BMI
- Ethnicity: Health risks occur at different BMI for Asian populations
For a complete health assessment, consider waist circumference, body composition analysis, and consultation with a healthcare provider.
Quick Reference
- BMI 18.5-24.9 = Normal weight range
- BMI 25 = Overweight threshold
- BMI 30 = Obese threshold
- Healthy waist = less than 40" (men), 35" (women)
✅ Free to use ✅ No registration required ✅ Multiple unit systems
Frequently Asked Questions
A healthy BMI for most adults is between 18.5 and 24.9. Below 18.5 is underweight, 25-29.9 is overweight, and 30+ is obese.
No. BMI doesn't distinguish between muscle and fat. Athletes with high muscle mass often have elevated BMI despite low body fat.
18.5-24.9 is healthy for most adults 20-65. Some research suggests slightly higher BMI (25-27) may be optimal for adults over 65.
Combine calorie control with regular exercise. Aim for 150 min/week moderate activity plus strength training. Lose 1-2 lbs/week for sustainable results.
Men: less than 40 inches. Women: less than 35 inches. Waist measurement is a better health indicator than BMI for some people.