BMI Calculator – Body Mass Index Calculator Online (Free)
Use our free BMI Calculator to check your Body Mass Index. Know if you’re Underweight (BMI < 18.5), Normal (18.5–24.9), Overweight (25–29.9), or Obese (30+). Supports height in cm, feet & inches. Calculates your ideal weight too!
BMI Calculator (Body Mass Index)
Calculate your BMI and assess your weight status using WHO standards
Enter Your Details
Your Results
Your body mass index result will appear here.
BMI Categories Explained
| BMI Range | Category | Health Risk |
|---|---|---|
| < 18.5 | Underweight | Increased |
| 18.5 – 24.9 | Healthy | Low |
| 25.0 – 29.9 | Overweight | Moderate |
| 30.0+ | Obese | High |
Source: World Health Organization
Why BMI Matters
According to the CDC, maintaining a healthy BMI can reduce the risk of:
- Heart disease, stroke, and diabetes
- Joint problems and mobility issues
- Fatigue and poor sleep
Nutrition Tips
- Eat whole, unprocessed foods
- Include fruits and vegetables daily
- Choose lean proteins and healthy fats
Activity Tips
- Exercise 150+ mins/week
- Use stairs, walk more, sit less
- Do strength training 2–3 times a week