BMI Calculator

Calculate your Body Mass Index to see if you're in a healthy weight range.

Your Measurements
Enter your height and weight
ft
in
lbs
Your BMI
23.6

Normal weight

Healthy Weight Range

For your height, a healthy weight range is:

125 - 169 lbs

BMI Categories
UnderweightBelow 18.5
Normal weight18.5 - 24.9
Overweight25 - 29.9
Obese (Class 1)30 - 34.9
Obese (Class 2)35 - 39.9
Obese (Class 3)40 or higher

What is BMI?

Body Mass Index (BMI) is a measure of body fat based on height and weight that applies to adult men and women. It's calculated by dividing your weight in kilograms by your height in meters squared. BMI provides a simple numeric measure of a person's thickness or thinness, allowing health professionals to discuss weight problems more objectively with their patients.

How to Use This BMI Calculator

  1. Enter your height in feet and inches or centimeters using the height input fields
  2. Enter your weight in pounds or kilograms using the weight input field
  3. Click the calculate button to see your BMI and weight category
  4. Review your results and the BMI category chart to understand where you fall

BMI Categories

  • Underweight: BMI less than 18.5
  • Normal weight: BMI 18.5-24.9
  • Overweight: BMI 25-29.9
  • Obesity: BMI 30 or higher

Frequently Asked Questions

How do I calculate BMI?

BMI is calculated by dividing your weight in kilograms by your height in meters squared. Our calculator does this automatically for you - just enter your height and weight in your preferred units (imperial or metric).

What is a healthy BMI range?

A healthy BMI typically ranges from 18.5 to 24.9. However, BMI doesn't account for muscle mass, bone density, age, or other factors, so consult a healthcare professional for personalized advice.

Is BMI an accurate measure of health?

BMI is a general indicator of body fat based on height and weight. While useful for population-level assessments, it doesn't account for muscle mass, bone density, age, gender, or body composition. Athletes with high muscle mass may have a higher BMI despite being healthy.

What do the BMI categories mean?

BMI categories are: Underweight (below 18.5), Normal weight (18.5-24.9), Overweight (25-29.9), and Obesity (30 or higher). These categories help assess potential health risks associated with weight.

Note: BMI is a general indicator and doesn't account for muscle mass, bone density, age, or other factors. Consult a healthcare professional for personalized advice.