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Doctor insights on: Bmi Calculator Height Weight Age Gender

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Dr. Cornelius O'leary jr
556 Doctors shared insights

Body Mass Index (Definition)

Body mass index (BMI) is a measurement based on a person's height and weight, to decide if a person is too heavy or too light for his height. The index is a number that can be in the underweight range, normal range, overweight range, or obese range. Children use different number ranges than adults do, ...Read more


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I've used BMI calculators online, which say my 10 yr. Old has a healthy weight. She is a 10 yr. Old girl 4 ft.11in.101lbs. Is she at a healthy weight?

I've used BMI calculators online, which say my 10 yr. Old has a healthy weight. She is a 10 yr. Old girl 4 ft.11in.101lbs. Is she at a healthy weight?

Yes: She is tall for her age but weighs a good amount for her height. this is true if she is 120 months old (just turned 10).
at 10 yrs, 59 inches is 95th percentile for height and 101 pounds is 92nd percentile for weight. According to World Health Organization growth curves.
she is well proportioned. ...Read more

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Are online BMI calculators accurate?

Are online BMI calculators accurate?

Yes, but...: The calculator will give you an accurate bmi, but how well that measures your fitness/health is unclear. I've had finely tuned athletes show up as obese according to bmi. If you're concerned about it just check with your doctor. ...Read more

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Is there a BMI calculator for metric data?

Many exist.: Yes. Just google bmi calculator. There are many out there. ...Read more

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For what reasons was the BMI calculator even invented?

For studies: In order to study obesity, one has to have a definition of what it means to be obese. You can't simply use weight, as 200 lb might be obese for some people but would be a thin person if their height was 6 ft 8 in. Bmi takes into account height and weight. A bmi over 30 is considered obese. ...Read more

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Are online BMI calculators accurate or is one website more accurate than others?

Are online BMI calculators accurate or is one website more accurate than others?

All should be OK: If you enter your correct height and weight into any bmi calculator, the results should be correct. The exact meaning of a particular bmi might be open to interpretation as someone who is very muscular and has only 4% body fat might have a higher bmi than a couch potato who has love handles. For most of us, the bmi is a good indicator of appropriate weight versus overweight. ...Read more

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I was just wondering what this is as a bmi I typed it in on my calculator and came up with this 17.96875 and I was just wondering if it’s 18 or 17.9??

I was just wondering what this is as a bmi I typed it in on my calculator and came up with this 17.96875 and I was just wondering if it’s 18 or 17.9??

You get to choose: We are a free people living in a free country, so you get to choose. The number is 18 if you choose to use only whole numbers. The number is 18.0 if you choose to have one number after the decimal. The number is 17.97 if you choose to have 2 numbers after the decimal. They are all the same number, but it's your choice. ...Read more

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How do you figure out your body mass index without a BMI calculator?

And the formula is:: English formula
bmi = (weight in pounds / (height in inches x height in inches)) x 703

metric formula
bmi = (weight in kilograms / (height in meters x height in meters)). ...Read more

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Where can I find a BMI calculator that includes bone?

Where can I find a BMI calculator that includes bone?

Try gov. Org: Bmi calculations and fat density vs muscle mass is helpful in weight management and to help with level of fitness. Try nutrition/ gov. Org. ...Read more

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Could it happen that a BMI calculator tell the difference between muscle and fat?

No: Bmi is simply a calculation based on height and weight. Since muscle weighs more than fat, muscular people will have higher bmis than normal. Body builders typically have bmis in the "obese" category (over 30), but they are not obese and many times have very low body fat. ...Read more

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I'm a 26 yr old female standing 5'2" how much should I weigh? All the BMI calculators say something different!

I'm a 26 yr old female standing 5'2" how much should I weigh? All the BMI calculators say something different!

Weight recommends: Are general. Around a 100 pounds if really petite. 110 pounds is spot on. Up to 121 is within range. However if you are muscular or have large bone structure you could weight more ; be just fine. ...Read more

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I am a male in my 50's non smoker Good Blood Pressure with a BMI of 22 I used an online Body Fat Calculator I appear to have 32% body fat, what does this mean in terms of health and lifestyle?

I am a male in my 50's non smoker Good Blood Pressure with a BMI of 22 I used an online Body Fat Calculator I appear to have 32% body fat, what does this mean in terms of health and lifestyle?

Based on: The profile you gave. Seems to have healthy body habit-us You can not use a formula to calculate your fat component accurately. Their machines that measure fat estimate fat component thru scan ...Read more

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Am I the ideal weight for my height and age if BMI is 25?

Not exactly: Bmi 25 is close to 80th percentile for female adult and 75th for male. Bmi over 85th percentile is regarded as overweight. ...Read more

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I am at the 8th percentile and BMI of 16.3 for my age, height, and weight. Is this underweight?

I am at the 8th percentile and BMI of 16.3 for my age, height, and weight. Is this underweight?

It would fall: In the underweight category, but may be appropriate for you. Have you discussed it with your doctor? ...Read more

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My bmi is 43.5 my height 5'10 age 19 water content is 36% I want to loose some serious weight what type of fruit should I eat or not?

My bmi is 43.5 my height 5'10 age 19 water content is 36% I want to loose some serious weight what type of fruit should I eat or not?

Any type: All fruit is healthy, and can be a part of a weight loss diet. It's a good idea to eat a variety of fruits, since different types have different nutrients in them. Fruits with a high water content - such as melon or grapefruit - can be useful in weight loss because the water makes you feel fuller but does not add calories. ...Read more

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My BMI is normal (about 22), but my body fat is high for my age & height (about 30% according to a digital scale). Do I need to lose weight?

Ask doctor: Check with your doctor or nutritionist. If there are metabolic illnesses in your personal or family history, you may wish to be more aggressive about body fat management. ...Read more

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How can I gain weight? I have been struggling to gain weight and according to my age, height, and BMI I am considered underweight.

How can I gain weight? I have been struggling to gain weight and according to my age, height, and BMI I am considered underweight.

Check caloric intake: The most common reason for being underweight according to bmi assuming you are taking in enough calories for your height is genetics. If one of your parents have he same body type, it does become more difficult to gain weight. With that said, it is important to eat more calories that what you are expending. Check how many calories you are burning at rest, with daily activities, and with exercis. ...Read more

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I am a 16 year old female. I am very active and I want to calculate my BMI but for a highly active teenager. Height: 5.6" weight: 155 age: 16 years ol?

I am a 16 year old female. I am very active and I want to calculate my BMI but for a highly active teenager. Height: 5.6" weight: 155 age: 16 years ol?

Fair: Your bmi is 25 kg/m2 and considered slightly overweight. However it is more important to measure the waist line size which should be much less than 35 inch in a female of your age. Do note that if you are somewhat muscular, the bmi may well be normal. ...Read more

Bmi (Definition)

Bmi or body mass index is how we define if a person is under or overweight. It is calculated my taking your height in meters and dividing it by your weight in kilograms squared. Or using a bmi calculator. A normal weight is a bmi between 18-25. Obese is a ...Read more