BMI Calculator
Calculate your body mass index, healthy weight targets, and health status.
Please input positive height and weight values to calculate BMI.
How to use
- 1Choose your unit system (Metric or Imperial).
- 2Enter your weight and height values.
- 3Check your custom health status and recommended weight ranges.
Frequently Asked Questions
What is the formula for calculating BMI?+
For the metric system, BMI is calculated as: Weight (kg) divided by Height squared (m²). For the imperial system, the formula is: Weight (lbs) multiplied by 703, then divided by Height squared (in²).
Are BMI calculations accurate for athletes?+
BMI is a general screening tool, not a direct measure of body fat. Because muscle is denser than fat, muscular individuals or athletes may obtain an 'overweight' or 'obese' rating despite having excellent health and low body fat.