BMI Calculator
Calculate your Body Mass Index using your height and weight. This simple tool helps you understand whether your result falls into the underweight, normal, overweight, or obesity category.
What Is BMI?
BMI stands for Body Mass Index. It is a simple calculation that compares your weight to your height. It is commonly used as a quick screening tool to estimate whether a person is in a lower, moderate, or higher weight range.
BMI does not directly measure body fat, muscle mass, or overall health, but it can still be a useful starting point for understanding your weight category.
How BMI Is Calculated
The formula is:
BMI = weight (kg) ÷ height (m)²
For example, if your weight is 70 kg and your height is 1.70 m, your BMI would be:
70 ÷ (1.70 × 1.70) = 24.22
BMI Categories
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Normal |
| 25.0 – 29.9 | Overweight |
| 30.0 and above | Obesity |
These ranges are used as general guidance only. BMI is most commonly used as a screening tool for adults and may not reflect individual health differences such as muscle mass, body composition, age, or other personal factors.
Important Disclaimer
This BMI calculator is provided for general informational purposes only and should not be considered medical advice. BMI is only one screening measure and does not replace professional medical assessment, diagnosis, or treatment.
Frequently Asked Questions
What is a healthy BMI?
A BMI between 18.5 and 24.9 is generally considered within the normal range for adults.
Is BMI always accurate?
BMI is a useful screening tool, but it does not directly measure body fat, muscle mass, or overall health.
Can I use this BMI calculator on mobile?
Yes. This BMI calculator is mobile-friendly and works on phones, tablets, and desktop devices.
Does BMI apply to everyone?
BMI is commonly used for adults, but it may not reflect individual differences such as muscle mass, age, or body composition.