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❤️ Your Measurements
Enter your height and weight to calculate your BMI
Height 170 cm
100 cm250 cm
Weight 70 kg
30 kg300 kg
📊 Your BMI Result
24.2
Normal Weight
Your BMI is within the healthy range. Keep maintaining your current lifestyle.
BMI Scale
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+
📏 Your BMI
24.2
🏷️ Category
Normal Weight
✅ Healthy Weight Range
58.0 – 78.6 kg
⚖️ Weight to Lose/Gain
Within range
🎯 Ideal Weight (mid)
68.3 kg
📊 Prime BMI
0.97
📋 BMI Categories Reference Table
| Category | BMI Range | Health Risk | Description |
|---|---|---|---|
| Underweight | Below 18.5 | Moderate | May indicate malnutrition or other health conditions |
| Normal Weight | 18.5 – 24.9 | Low | Healthy weight range associated with lowest health risks |
| Overweight | 25.0 – 29.9 | Increased | Elevated risk of cardiovascular disease and diabetes |
| Obese Class I | 30.0 – 34.9 | High | High risk of serious health conditions |
| Obese Class II | 35.0 – 39.9 | Very High | Very high risk requiring medical attention |
| Obese Class III | 40.0 and above | Extremely High | Extremely high risk — immediate medical consultation recommended |
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What is BMI?
Body Mass Index (BMI) is a numerical value calculated from your height and weight. It is a widely used screening tool to categorize individuals as underweight, normal weight, overweight or obese. BMI provides a simple and inexpensive method to assess whether a person has a healthy body weight relative to their height.
BMI is used by healthcare professionals worldwide as an initial screening tool. While it does not directly measure body fat percentage, research has shown that BMI correlates reasonably well with body fat in most adults.
BMI Formula
The BMI formula differs slightly depending on whether you use metric or imperial measurements:
Metric: BMI = weight (kg) ÷ height² (m²)
Imperial: BMI = 703 × weight (lbs) ÷ height² (inches²)
Example (Metric):
Weight = 70 kg, Height = 1.70 m
BMI = 70 ÷ (1.70 × 1.70) = 70 ÷ 2.89 = 24.2
What is a Healthy BMI?
For most adults aged 18 to 65, a BMI between 18.5 and 24.9 is considered healthy. A BMI below 18.5 suggests underweight, between 25 and 29.9 is overweight, and 30 or above is classified as obese. These categories are defined by the World Health Organization (WHO) and are used globally.
BMI Limitations — What BMI Does Not Tell You
- BMI does not distinguish between muscle and fat — athletes with high muscle mass may have a high BMI despite low body fat
- BMI does not account for age — older adults naturally have more body fat at the same BMI as younger adults
- BMI does not indicate where fat is distributed — abdominal fat is more dangerous than fat stored elsewhere
- BMI may be less accurate for people of certain ethnic backgrounds — Asian populations face higher health risks at lower BMI values
- BMI is not suitable for children, pregnant women or extremely muscular individuals
How to Maintain a Healthy BMI
- Engage in at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous activity per week
- Eat a balanced diet rich in vegetables, fruits, lean proteins and whole grains
- Limit processed foods, added sugars and excessive saturated fats
- Stay well hydrated — drink at least 8 glasses of water daily
- Get 7 to 9 hours of quality sleep each night
- Manage stress through meditation, exercise or other healthy coping strategies
- Consult your healthcare provider regularly for personalized guidance
⚠️ Medical Disclaimer: This BMI calculator is for informational and educational purposes only. BMI is a screening tool and not a diagnostic measurement. It should not replace professional medical advice, diagnosis or treatment. Always consult a qualified healthcare professional regarding your weight, health and fitness goals.
Frequently Asked Questions About BMI
Is BMI an accurate measure of health? +
BMI is a useful screening tool but it has limitations. It does not measure body fat directly, does not account for muscle mass, age or body fat distribution. Athletes may have a high BMI due to muscle rather than fat. BMI should be used alongside other health indicators for a complete picture.
What is a healthy BMI for women? +
The healthy BMI range is the same for both men and women — between 18.5 and 24.9. However, women naturally carry a higher percentage of body fat than men at the same BMI, which is normal and healthy. Some research suggests the ideal BMI for women may be slightly lower at 21–23.
What is a healthy BMI for men? +
For adult men, a BMI between 18.5 and 24.9 is considered healthy. Men typically have less body fat and more muscle mass than women at the same BMI. Muscular men such as athletes may have a BMI above 25 while still being very healthy.
How can I lower my BMI? +
To lower your BMI, you need to reduce body weight through a combination of healthy eating and regular physical activity. Creating a moderate calorie deficit of 500 calories per day can help you lose approximately 0.5 kg per week. Strength training helps preserve muscle while losing fat. Always consult a doctor before starting a weight loss program.
What BMI is considered obese? +
A BMI of 30 or above is classified as obese according to World Health Organization (WHO) standards. Obesity is further divided into three classes — Class I (30–34.9), Class II (35–39.9) and Class III or severe obesity (40 and above). Each class carries progressively higher health risks.