Body Mass Index (BMI) Calculator | The Paleo Diet®
noun_Search_345985 Created with Sketch.

The latest from The Paleo Diet®, just for you.

Hot topics, new recipes, and science

Body Mass Index

By Loren Cordain, Ph.D., Professor Emeritus, Founder of The Paleo Diet
April 18, 2012
Photo: shutterstock.com Photo: shutterstock.com

Body Mass Index (BMI), officially called the Quetelet Body Mass Index after its creator, Belgian mathematician Lambert Quetelet (1796-1874), is an easy way to estimate if you are overweight or obese. (Roughly two-thirds of adult Americans have BMI values that put them into one of these categories.) The breakdowns are as follows:

Underweight = less than 18.5

Normal = 18.5-24.9

Overweight = 25-29.9

Obese = 30.0 or greater

Across a large population, the BMI correlates well with degree of body fat. However, there are certain exceptions. Very muscular, heavy athletes, who are actually quite lean when their body fat is measured, may have high BMI values. And in older adults, BMI frequently underestimates a person’s amount of body fat.

If you have a BMI in the overweight or obese category, you have a significantly increased risk for cardiovascular disease, type 2 diabetes, the metabolic syndrome, and various cancers.

BMI is determined by dividing your weight in kilograms by your height squared in meters. The NIH has created a simple BMI calculator that you can find at: https://www.nhlbi.nih.gov/health/educational/lose_wt/BMI/bmicalc.htm

Even More Articles For You

Promoting Calcium Balance Health on a Paleo Diet (Easier Than You Think)
Learn how to promote calcium balance on a paleo diet. Browse The Paleo Diet® blog for more paleo diet tips, paleo recipes, meal plans & more today!
By Dr. Marc Bubbs
June: Your Top Five Comments
Read the top five June comments from The Paleo Diet®. Browse our website for paleo meal ideas, paleo dinner recipes, paleo cookbooks & more today!
By The Paleo Diet® Team
Is Paleo Sustainable for 7 Billion People?
If seven billion people adopted a diet higher in meat without making these three environmentally-friendly, Paleo adjustments, it would not be sustainable.
By Stephanie Vuolo
Paleo Leadership
 
Trevor Connor
Trevor Connor

Dr. Loren Cordain’s final graduate student, Trevor Connor, M.S., brings more than a decade of nutrition and physiology expertise to spearhead the new Paleo Diet team.

Mark J Smith
Dr. Mark Smith

One of the original members of the Paleo movement, Mark J. Smith, Ph.D., has spent nearly 30 years advocating for the benefits of Paleo nutrition.

Nell Stephenson
Nell Stephenson

Ironman athlete, mom, author, and nutrition blogger Nell Stephenson has been an influential member of the Paleo movement for over a decade.

Loren Cordain
Dr. Loren Cordain

As a professor at Colorado State University, Dr. Loren Cordain developed The Paleo Diet® through decades of research and collaboration with fellow scientists around the world.