Your Measurements

Provide your height and weight to compute your BMI.

What is BMI?

BMI (Body Mass Index) is a simple calculation using height and weight to estimate general body composition trends.

Formula

BMI = Weight (kg) ÷ (Height (m)²)

BMI Categories

  • Underweight: < 18.5
  • Normal weight: 18.5 – 24.9
  • Overweight: 25 – 29.9
  • Obese: 30+

Example

If you are 170 cm and 65 kg:

  • BMI = 65 ÷ (1.70²)
  • BMI ≈ 22.5 (Normal weight)

FAQ

Is BMI accurate?
It’s a general guideline — athletes or muscular individuals may have higher BMI without excess fat.

Do I need to convert units?
No — just enter height in cm and weight in kg.

Does age matter?
BMI categories are the same for adults of all ages.

Why BMI Matters

BMI is widely used as a quick screening tool to understand general weight categories. While it doesn’t measure body fat directly, it provides a helpful starting point for tracking long‑term health trends.

What This Tool Helps You Do

Who This Tool Is For

Additional FAQ

Does BMI measure body fat?
No — BMI is a height‑to‑weight ratio, not a body fat measurement.

Is this medical advice?
No — this is a general health estimate for everyday use.