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Online BMI Calculator
Use our easy and accurate online BMI Calculator to determine your Body Mass Index based on weight and height measurements. A valuable tool for tracking health and fitness status.
Body Mass Index
Underweight
Normal
Overweight
Obesity
| Body Mass Index | 24.2 kg/m2 |
|---|---|
| BMI Category | Healthy weight |
| Healthy BMI Range | 18.5 kg/m2 - 25 kg/m2 |
| Healthy weight for the height | 135.1 lbs - 182.6 lbs |
| Gain to reach a BMI of 18.5 kg/m2 | - |
| Lose to reach a BMI of 25 kg/m2 | - |
| Personal Index | 13.27 kg/m3 |
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What Is This Tool?
The BMI Calculator is a health tool that computes the Body Mass Index by using your weight in kilograms and height in meters. This calculation helps classify individuals into categories like underweight, normal weight, overweight, or obese based on their body mass.
How to Use This Tool?
- Enter your body weight in kilograms into the weight input field
- Enter your height in meters into the height input field
- Click the calculate button to compute your BMI
- Review the BMI value to understand your weight category
- Use the results to inform your health or fitness decisions
Key Features
- Calculates BMI using the formula BMI = weight (kg) / height (m)²
- Accepts weight in kilograms and height in meters for input
- Delivers BMI results accurate to two decimal places
- Provides a quick assessment of body weight categories
- Browser-based and easy to use without any installations
Examples
- For a person weighing 70 kg with a height of 1.75 m, BMI = 70 / (1.75²) = 22.86
- If someone weighs 85 kg and is 1.80 m tall, their BMI is calculated similarly using the formula
- A weight of 60 kg and height of 1.60 m also fits into this calculation pattern
Common Use Cases
- Monitoring health status during medical checkups
- Assessing body weight for fitness and wellness programs
- Tracking weight changes over time for personal health goals
- Helping healthcare professionals provide weight-related advice
Tips & Best Practices
- Ensure accurate entry of weight in kilograms and height in meters
- Use the BMI result as a general indicator, not a definitive health diagnosis
- Combine BMI with other health measures for comprehensive assessment
- Repeat measurements periodically to observe trends over time
Limitations
- BMI does not consider muscle mass, which may affect the classification
- It ignores bone density and overall body composition variances
- Not suitable for all populations as it is a general health indicator
- Should not replace professional medical evaluation for health
Frequently Asked Questions
- What units should I use for weight and height?
- You should enter your weight in kilograms and your height in meters to get an accurate BMI calculation.
- Can this calculator determine if I am healthy?
- This calculator provides a BMI value that indicates weight category but does not assess overall health or body composition.
- How precise is the BMI calculation?
- The BMI result is calculated to two decimal places using standard arithmetic for accurate measurement.
- Why might BMI not be accurate for everyone?
- BMI does not account for differences in muscle mass, bone density, or body composition, which can affect classification.
Key Terminology
- BMI
- Body Mass Index, a measure of body fat based on weight and height.
- Weight
- The body mass of an individual measured in kilograms.
- Height
- The measurement of how tall an individual is, expressed in meters.