BMI Calculator

Calculate your BMI online using your height, weight and age (kg / cm).

How to use

  1. Enter your height in centimeters and weight in kilograms.
  2. Enter your age — BMI interpretation differs for people under 18.
  3. Click “Calculate” to see your BMI value and category instantly.

Frequently Asked Questions

What is a healthy BMI range?

For adults, 18.5–24.9 is generally considered a normal range, though BMI doesn't account for muscle mass or body composition.

Is BMI accurate for everyone?

BMI is a general screening tool, not a diagnosis. It can be less accurate for athletes, older adults, and growing children/teens.

Why does age matter here?

Standard BMI categories are designed for adults. For anyone under 18, this tool shows the raw value with a note rather than an adult category.