Calculate BMI. Our calculator quickly determines your BMI (18+).
BMI (Body Mass Index) is a numerical value that compares weight and height to indicate whether someone is underweight, normal weight, or overweight. While BMI can be useful as a general guideline, it should be interpreted with caution. It does not account for factors like age, muscle mass, pregnancy, or body composition.
BMI Formula:
$$\frac{weight}{height^2}$$
kg
cm
BMI Scale
| BMI | Category |
| < 18.4 | Underweight |
| 18.5 - 24.9 | Normal weight |
| 25.0 - 39.9 | Overweight |
| > 40 | Obese |
What is BMI?
BMI, or Body Mass Index, is a measurement used to assess whether a person has a healthy body weight for their height. It's calculated by dividing a person's weight in kilograms by their height in meters squared.
How do you calculate BMI?
To calculate BMI, use the formula: BMI = weight (kg) / (height (m) × height (m)). For example, if you weigh 70 kg and are 1.75 meters tall, your BMI would be 70 / (1.75 × 1.75) = 22.86.
What is a normal BMI?
A normal BMI ranges from 18.5 to 24.9. This range is considered a healthy weight for most adults. A BMI below 18.5 is considered underweight, and above 24.9 is considered overweight.
What is a normal BMI for women?
A normal BMI for women is also between 18.5 and 24.9. The same range applies to men, although body composition and individual health factors should always be considered.
How is BMI calculated?
BMI is calculated by dividing a person's weight in kilograms by their height in meters squared. It's a simple way to assess body weight in relation to height.
What does BMI mean?
BMI stands for Body Mass Index. It's an estimate of body fat based on weight and height, commonly used in healthcare to assess risk for health conditions related to underweight or overweight.
What is a healthy BMI?
A healthy BMI is between 18.5 and 24.9. This range indicates that a person's weight is appropriate for their height and is associated with a lower risk of health problems.
What is a normal BMI for older adults?
For older adults, a slightly higher BMI may be beneficial. A BMI between 23 and 27 is often considered healthier for older individuals to help protect against muscle loss and other age-related health issues.
What is a normal BMI for men?
The normal BMI range for men is the same as for women—between 18.5 and 24.9. However, muscle mass can affect BMI, and muscular individuals may have a higher BMI without being overweight.
What is an ideal BMI?
The ideal BMI for most adults falls between 18.5 and 24.9. This range is considered optimal for maintaining good health and reducing the risk of chronic disease.
How much should you weigh?
Your ideal weight depends on several factors including height, gender, age, and overall health. A BMI calculator can help estimate a healthy weight range based on your height.