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Doctor insights on: Bmi And Body Fat Percentage Difference

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Dr. Cornelius O'leary jr
568 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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Is body fat percentage the same as bmi?

Is body fat percentage the same as bmi?

Different measures: Percentage body fat is just that & direct measurements are hard, requiring weight on land & suspension in a water tank with elaborate calculations. Most normal adults run in the 20's % while a body builder would run<5%. Special scales & caliper measures estimate body fat. Bmi is a number relating weight to height. It is easier to obtain but less specific. ...Read more

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I want to know what is the difference between BMI (body mass index) and body fat percentage?

I want to know what is the difference between BMI (body mass index) and body fat percentage?

Well: Bmi is a calculation based solely upon height and weight. Body composition, if done properly, is a measurement of you body's percentages such as fat, water, bone, etc. ...Read more

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How to lower body fat percentage without losing weight?

How to lower body fat percentage without losing weight?

Resistance Exercise: For people who are at an acceptable weight but want to lose a little around the middle, increasing physical activity can help. Resistance training is especially beneficial. You will burn body fat and build muscle, which is more dense. This can allow you to lose inches without losing much weight. ...Read more

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Which is more reliable, body mass index (bmi) or body fat percentage (bfp)?

For what?: Bmi doesn't take in to account your body type (ectomorph, etc). Body fat percentage will. What you are using the number for is what matters. ...Read more

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What is your body fat percentage calculated from?

What is your body fat percentage calculated from?

Impedance : There are two ways. The practical way is to use a scale that uses impedance. You either stand on the metal plates on the scale or hold metal bar. An electrical signal is sent from one plate and the returning plate waits for the signal to reach it. The time taken for this is calculated and a complex formula is used to give you an estimate of %body fat. The more expensive way is much less practical. ...Read more

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Any good device to calculate body fat percentage?

Any good device to calculate body fat percentage?

This is quick: You can get a rough idea of your body fat percentage using this online tool: http://www.Fitwatch.Com/qkcalc/body-fat-percentage-calculator.Php. ...Read more

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How are BMI and body composition different?

How are BMI and body composition different?

Let me explain: Body mass index or bmi is the measure of one's body fat based on only your height and weight and more commonly used to to access health risks associated with increased body mass. Your body composition is calculated from the percentage of body fat, muscles, bones, water , and tissues in your body and provides and more detailed estimate of your conditioning. ...Read more

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What is the difference between BMI and body fat?

Body mass: Bmi is a ratio of weight to height. It is a calculating. Body fat is a measurement of the amount of fat in your body, which can only be measured indirectly and not always accurately. ...Read more

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How to reduce body fat percentage?

Decrease body fat %: Eat healthfully ; be physically active. Aim for 7.5 to 8 hrs of sleep / night. Hydrate w at least 64 oz of water / day. Calories burned must > calories consumed. Do both cardio ; weight training. ...Read more

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How can you calculate percent body fat without a skinfold caliper?

Rough estimate: You can get a rough idea of your body fat percentage using this online tool: http://www.Fitwatch.Com/qkcalc/body-fat-percentage-calculator.Php. ...Read more

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What is the formula for calculating body mass index and ideal body weight?

BMI: The body mass index is equal to the person's weight divided by the square of their height. Ideal body weight will vary with age, sex, muscle/fat ratio, height and bone density. Bmi is only a rough guide of a person's ideal body weight which is usually a range and not an absolute number. Generally a bmi less than 18 is underweight, 18-25 is ideal, 25-30 is overweight and over 30 is obese. ...Read more

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How do you acccurately calculateyour resting metabolic rate and body mass index/ body fat %?

Many methods: There are many methods, with varying accuracy. Bmi is simply wt/ht(2). A simple method for %fat is impedance, and trainers often use them. Gold standard for %fat is underwater weighing, bodpod, or dexa. Rmr requires a metabolic cart which is used in hospitals and research labs. Many of these are relegated to research labs. It is usually not necessary to know all this to be healthy. ...Read more

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How to calculate your body fat percentage?

How to calculate your body fat percentage?

See below: hydrostatic weighing, DEXA scans are incredibly accurate at measuring body composition. But whereas hydrostatic weighing involves getting dunked under the water, a DEXA scan simply involves lying on a table for a few quick, dry and painless minute. Calipers are not as accurate as above...use the BMI scale also ...Read more

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How can one lose body fat percentage without losing weight?

How can one lose body fat percentage without losing weight?

Resistance training: Muscle weighs more than fat so as one gains muscle and becomes more lean with resistance training they may lose less overall weight. Most likely if you are becoming leaner from resistance training, you are probably losing some body fat percentage as well as weight. ...Read more

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Does body fat lbs and muscle weigh the same..? When losing weight does the scale number matter? Or is it your body fat?

Does body fat lbs and muscle weigh the same..?  When losing weight does the scale number matter? Or is it your body fat?

Fat is much lighter : Weight does matter, but losing fat rather than muscle matters the most. Simple caloric restriction leads to mixed loss of fat and muscle. Muscle sparing diets such as HCG or diets accompanied by muscle building exercises are safer. ...Read more

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How do I calculate body fat percentage accurately?

See tools: There are several online tools for calculating bmi (http://www.Bmi-calculator.Net/body-fat-calculator/, http://www.Livestrong.Com/tools/body-fat-calculator/, http://www.Nhlbisupport.Com/bmi/) then, more accurately, a dietician or other trained profession can do a caliper measurement. There is a bioelectric impedence scale, and recently the usaf uses a "bod pod" to calculate body density and fat. ...Read more

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How can I lower body fat percentage?

Body fat: Eat healthfully ; be physically active. Aim for 7.5 to 8 hrs of sleep / night. Hydrate w at least 64 oz of water / day. Calories burned must > calories consumed. Do both cardio ; weight training. ...Read more

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Why its hard to lose weight at a low body fat percentage?

Why its hard to lose weight at a low body fat percentage?

Why lose weight?: If your body fat,percentage is low, chances are that you don't need to lose,weight. That is why it is hard. Why are you trying? If you want to firm up, try doing weight bearing exercises and lifting. But trying to lose weight will probably only work against you. ...Read more

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What is a good body fat percentage for 26-year-old 5"5, I currently weigh 129. By current body fat says(22.7)?

What is a good body fat percentage for 26-year-old 5"5, I currently weigh 129. By current body fat says(22.7)?

Body fat: Does not sound too bad for me. If you are concerned please make a visit to a nurse practitioner. Hope all goes well - I suspect things will be OK. Please keep me posted. ...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