BMI Calculators Overview
BMI Calculators are tools for calculating body mass index (BMI), which is an index indicating the degree of obesity. BMI is calculated by the formula of weight and height. If your height is t meters and your weight is w kilograms, your BMI can be expressed by the following formula:1
BMI = w/t2
You can calculate your BMI immediately by entering your height and weight in the blanks of the BMI calculators below. For your convenience, I provide both a BMI calculator based on the metric system (cm and kg) and a BMI calculator based on the imperial system (inches and pounds). You can check your current obesity level by comparing the results obtained with the BMI calculator with the obesity criteria that follow.
BMI Calculator (cm-kg)
BMI Calculator (inch-pound)
Interpretation and Obesity Criteria
- World Health Organization2
- Severe obesity (stage 3 obesity): 40 or more
- Moderate obesity (stage 2 obesity): 35 – 39.9
- Mild obesity (stage 1 obesity): 30 – 34.9
- Overweight: 25 – 29.9
- Normal: 18.5 – 24.9
- Underweight: less than 18.5
Articles about BMI Calculators
Below is a list of articles to keep you up to date on BMI calculations and obesity. Don’t miss out on the latest information.
- Withings Body Smart review: The smart scale most people actually need? - Wareable
- 1 in 3 adults in England now lives with obesity - diabetes.co.uk
- How is obesity measured, and how does it affect the body? - Nebraska Medicine
- Genetic Factors May Explain Link Between Parental And Child Body Mass Index: Study - NDTV
- Average body mass index (BMI) based on self-reported height and weight are underreported unless adjusted - Economic Research Service (.gov)
- Why Being a Little Overweight May Be OK - Verywell Health
- Hometown Health: Normal BMI may not rule out obesity-related health risks, new study shows - WDBJ7
- Association of Body Mass Index With Mortality and Clinical Outcomes in Patients With Nonalcoholic Fatty Liver Disease: A Medical Information Mart for Intensive Care IV (MIMIC-IV) Cohort Study - Cureus
- An IPPS Proposed Rule Preview – Body Mass Index (BMI) – ICD10monitor - MedLearn Publishing
- Body mass index found to drastically underestimate obesity levels in the United States - Keck Medicine of USC
(Dr. Shin’s Notes only provides links to the articles, and all responsibility for the articles rests with each media company.)
More Calculators
You can find more calculators useful in your daily life in the Tools category. They are developed to improve your health as well as your work efficiency. If you have a calculator idea you’ve always needed, please let me know in the comments. I’ll try to develop it for you.
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Great calculators that will help people in their weight loss journeys! Losing weight and ensuring that it’s maintained can be difficult, but the right resources can make such a difference.
I sincerely hope that the BMI calculator here can help you manage your health.