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BMI Calculator
BMI (body mass index) is a calculation used to determine if a person is overweight that applies to both adult men and women. Although BMI is not perfect because it does not directly assess body fat, it is still considered a reasonable alternative for identify people who are overweight or obese, since measuring body fat directly is a costly process.
This BMI calculator will give your estimated number. Enter your height and weight below, then click the "Submit" button. If your BMI is above 25, losing weight is a smart idea.
BMI interpretation
| Under 18.5 | Underweight |
| 18.5 - 24.9 | Normal |
| 25 - 29.9 | Overweight |
| 30 and over | Obese |
BMI table
You can also determine your BMI using the chart below. First, identify your weight (to the nearest 10 pounds) in one of the columns across the top, then move your finger down the column until you come to the row that represents your height. Inside the square where your weight and height meet is a number that is an estimate of your BMI. For example, if you weigh 160 pounds and are 5'7", your BMI is 25.
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
Plantar warts: Options for treating this common foot condition
Nutritional yeast: Does this savory, vegan seasoning pack a nutritional punch?
Salmonella is sneaky: Watch out
Two jobs may lower the odds of dying from Alzheimer's disease — but why?
Mastitis: What to do when your breasts are painfully inflamed
How — and why — to fit more fiber and fermented food into your meals
UTI in older women: Why postmenopausal women are susceptible to urinary tract infection, and what to do about it
Can a routine vaccine prevent dementia?
Some adults may need a measles booster shot. Who should get one and why?
Less butter, more plant oils, longer life?
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Lose Weight and Keep It Off
Successful weight loss depends largely on becoming more aware of your behaviors and starting to change them. Instead of relying on willpower, this process demands skill power. This Special Health Report, Lose Weight and Keep It Off, offers a range of solutions that have worked for many people and can be tailored to your needs.
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