What is BMI?▼
BMI (Body Mass Index) is a measurement used to assess body weight relative to height. It's calculated by dividing weight (in kilograms) by height (in meters) squared. BMI provides a quick estimate of body composition but doesn't account for muscle mass, bone density, or fat distribution.
Is BMI accurate for athletes and gym-goers?▼
BMI can be less accurate for athletes and individuals with high muscle mass because muscle weighs more than fat. A person with significant muscle mass may have a higher BMI that falls in the "overweight" category, even though they have a healthy body composition. Consider using body fat percentage measurements alongside BMI for a more complete picture.
What is a healthy BMI range?▼
A healthy BMI typically falls between 18.5 and 24.9. Values below 18.5 are considered underweight, 25-29.9 is overweight, and 30 or above is classified as obese. However, these ranges are general guidelines and may not apply to everyone, especially athletes or individuals with different body compositions.
How is body fat percentage estimated?▼
This calculator uses the Deurenberg formula to estimate body fat percentage based on BMI, age, and gender. This is an approximation and may not be accurate for athletes or individuals with unusual body compositions. For precise measurements, consider using body fat scales, DEXA scans, or other professional methods.
What is the ideal weight range?▼
The ideal weight range is calculated based on a BMI between 18.5 and 25.0, which is generally considered the healthy range. This gives you a target weight range for your height. Keep in mind that this is a general guideline, and individual factors like muscle mass, body frame, and overall health should be considered.
Should I use metric or imperial units?▼
You can use either system - the calculator supports both metric (kg/cm) and imperial (lbs/inches) units. Simply select your preferred unit system and enter your measurements. The BMI calculation will be identical regardless of which system you use.