BMI Calculator
Body Mass Index with visual health gauge
What is BMI?
Body Mass Index (BMI) is a measurement using height and weight to estimate whether you are at a healthy weight. It is calculated by dividing weight in kilograms by height in meters squared.
BMI Categories
| BMI Range | Category |
|---|---|
| Below 18.5 | Underweight |
| 18.5 - 24.9 | Normal weight |
| 25.0 - 29.9 | Overweight |
| 30.0+ | Obese |
Limitations
BMI does not distinguish between muscle and fat mass and may not be accurate for athletes, elderly individuals, or pregnant women. Consult a healthcare professional for a complete assessment.
Frequently Asked Questions
What is a healthy BMI?
A healthy BMI falls between 18.5 and 24.9. This range is associated with the lowest risk of weight-related health problems.
How accurate is BMI?
BMI is a useful screening tool but has limitations. It does not account for muscle mass, bone density, age, or gender. Athletes may have a high BMI due to muscle, not fat.
What is BMI Prime?
BMI Prime is the ratio of your BMI to the upper limit of normal (25). A BMI Prime under 1.0 means you are in the normal range. Over 1.0 indicates overweight.
How do I lower my BMI?
To lower your BMI, focus on creating a moderate caloric deficit through diet and exercise. A reduction of 500 calories per day typically results in about 1 pound of weight loss per week.