BMI & Ideal Weight Calculator
Calculate Body Mass Index (BMI) and health status category.
General screening figure only — not a medical diagnosis.
About This Tool
Body Mass Index (BMI) is a simple screening measure calculated from height and weight, widely used as a general indicator of whether someone's weight falls in a typical range for their height. This calculator computes BMI instantly using the standard metric formula.
How to Use BMI & Ideal Weight Calculator
- Enter your height in centimeters.
- Enter your weight in kilograms.
- Your BMI value and category appear immediately.
Frequently Asked Questions
Is BMI a medical diagnosis?
No. BMI is a general screening tool, not a diagnosis. It does not account for muscle mass, bone density, age, or sex, and should not replace advice from a healthcare professional.
What do the BMI categories mean?
Broadly: under 18.5 is considered underweight, 18.5-24.9 normal weight, 25-29.9 overweight, and 30+ obese, per commonly used international guidelines — but individual health varies and this is not a substitute for medical evaluation.