Body Mass Index (BMI) Calculator

body mass index (BMI) calculator

Health, Fitness, Well-Being

BMI Ranges
BMI Range Description
BMI < 18.5 A BMI less than 18.5 is classified as underweight.
18.5 ≤ BMI < 25 A BMI greater than or equal to 18.5 and less than 25 is classified as normal.
25 ≤ BMI < 30 A BMI greater than or equal to 25 and lower than 30 is classified as overweight.
BMI ≥ 30 A BMI equal to or over 30 is classified as obese.


Use this scientifically-founded MyFitness calculator or charts below to accurately find your personalized ideal weight (For Both Men and Women). If your BMI is within normal range, your BMI indicates that you are healthy.

If you would like to find out your daily recommended macronutrient intake to optimize your health, consider using our proprietary MyFitness Macronutrient Calculator to give you a breakdown on how many grams of Protein, Carbohydrates, and Lipids (Fats) should be in your diet to maintain optimal health.

Note: BMI is only one measurement of health and should not be used as a sole indicator of one's health. Please consult your physician if there are any serious concerns. Lean athletes often have a high muscle to fat ratio resulting in a BMI that is misleadingly high relative to their actual body fat percentage.

Body Mass Index (BMI) Calculator | MyFitness Calculators

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Note: 1 foot = 12 inches, 1 meter = 100 centimeters
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Note: If the calculator is not working, check that your input is only numerical.

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Check out the MyFitness Blog for health and fitness articles to help achieve your health and fitness goals.

BMI Charts

BMI Chart Male Female Pound (US) - Standard Kilogram (SI) - Metric

Calculate your Calorie requirements to lose/gain weight using our proprietary MyFitness BMR/TDEE Calculator!