BMI Calculator & Healthy Weight Plan
Body mass index (BMI) estimates how healthy your weight is based on your height. BMI can help most adults understand their weight and health risks.
BMI Calculator
Submit your height and weight to calculate your BMI. Complete optional fields below to learn more about your waist size, health risks, and steps to reach your weight goals.
*Required - Please complete these fields first
ft
in
lbs
Your Waist Size
*BMI Required - Please fill out all fields first
in
in
optional
Measure your waist at the smallest point and your hips at the widest.
Healthy Weight Plan
*BMI Required - Please fill out all fields first
Yrs
Learn about steps you can take to reach your weight goals, including diet and exercise tips and treatment options.
About BMI
BMI, or body mass index, measures how healthy your weight is based on how tall you are. There's no "perfect weight" that fits everyone, but BMI gives you a clue to your risk for weight-related health problems.
Glossary
BMI Calculator
A number doctors use to help judge your risk of illness. Body fat isn’t measured.
Waist-to-Height Ratio
Helps describe your body shape and could warn of health problems.
Metabolism
The process in your body that turns calories into energy.
Daily Calorie Target
The net number of calories your body needs to meet your weight goal.
Target Heart Rate
How fast your heart should beat when you're getting a good workout.
Other Health Management Tools
- Food CalculatorTally up the calories, fat, carbs, protein and more in over 37,000 foods and drinks, from homemade and store-bought fare to menu items from popular chain restaurants.
- Exercise CalculatorThe WebMD Exercise Calculator helps you estimate how many calories you burn doing common activities and exercises including jogging, walking, and grocery shopping.
- JumpStart by WebMDWhether your goal is to build strength, lose weight or just stay in shape, find health and fitness information here to help you achieve a healthy lifestyle.