Free Body Mass Index (BMI) & Ideal Weight Calculator

Calculate your Body Mass Index (BMI), WHO weight category (Underweight, Normal, Overweight, Obese), and ideal body weight range based on height and gender.

🔒 100% In-Browser & Zero Server Uploads

About BMI & Ideal Body Weight Calculator

Calculates BMI = weight (kg) / [height (m)]² according to World Health Organization (WHO) and Asian-specific health benchmarks.

How to Use BMI & Ideal Body Weight Calculator Online

  1. Enter your Height in cm or feet/inches.
  2. Enter your Weight in kg or lbs.
  3. View your BMI score, healthy weight range, and WHO classification.

Frequently Asked Questions

What are the WHO BMI categories?
Underweight: < 18.5 | Normal weight: 18.5–24.9 | Overweight: 25–29.9 | Obese: ≥ 30.