What is BMI and why is it important?

BMI (Body Mass Index) is a measure of body fat based on height and weight. It helps assess if you are at a healthy weight for your height.

What are the BMI categories?

BMI categories are: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obese (30 and above).

Is BMI accurate for everyone?

BMI is a general screening tool. It may not be accurate for athletes with high muscle mass or elderly individuals with muscle loss.

BMI Calculator

Calculate your Body Mass Index (BMI) to assess if you're in a healthy weight range.

How to Use This BMI Calculator

Step-by-Step Guide:

1. Choose Units: Select metric (cm/kg) or imperial (in/lbs)
2. Enter Height: Input your height in centimeters or inches
3. Enter Weight: Input your weight in kilograms or pounds
4. Calculate: Click "Calculate BMI" to see your result
5. Review: Check your BMI category and health guidance

Real Example:

Person: 5'9" (175 cm), 154 lbs (70 kg)

BMI: 22.8

Category: Normal weight ✅

Quick Tips:

• BMI is most accurate for adults 18-65
• Results update automatically as you type
• Color coding shows category at a glance
• Remember: BMI doesn't measure muscle vs fat

Calculate BMI

Units

Height (cm)

Weight (kg)

BMI Categories

UnderweightBMI < 18.5

Normal weightBMI 18.5 - 24.9

OverweightBMI 25 - 29.9

ObeseBMI ≥ 30

Important Note

BMI is a screening tool and does not diagnose body fatness or health. Factors like muscle mass, bone density, and overall body composition are not considered. Consult with a healthcare provider for a comprehensive health assessment.