How do you calculate BMI?

Body Mass Index is a simple calculation using a person’s height and weight. The formula is BMI = kg/m2 where kg is a person’s weight in kilograms and m2 is their height in metres squared. A BMI of 25.0 or more is overweight, while the healthy range is 18.5 to 24.9. BMI applies to most adults 18-65 years.

How do you calculate BMI in pounds?

Then, calculate BMI by dividing weight in pounds (lb) by height in inches (in) squared and multiplying by a conversion factor of 703. When using a handheld calculator, if your calculator has a square function, divide weight (lb) by height (in) squared, multiply by 703, and round to one decimal place.

How do you calculate BMI with height and feet?

BMI Formulas

  1. Metric units: BMI = weight (kg) ÷ height2 (m)
  2. US units: BMI = (weight (lb) ÷ height2 (in)) * 703.

How is BMI calculated in South Africa?

BMI is calculated by dividing weight in kilograms by height in metres squared. For example, if you are 1.65m tall and weigh 85kg: weight / height squared = 85 / 1.65 x 1.65 = 85 / 2.72 = 31.25. Then your BMI would be 31.25. Your News24 subscription is an investment in independent journalism.

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How do I manually calculate my BMI Australia?

BMI is calculated by:

  1. Dividing your weight(kg) by your height(m)
  2. Dividing the answer by your height(m) again to get your BMI.


What does the BMI tell you?

BMI is a way to figure out your approximate level of body fat in an easy, inexpensive way. It’s a number based on your weight and height that can help you tell if you are at a healthy weight for your height. In general, the higher the number, the more body fat a person has.

What is my ideal weight?

Weight and height guide chart

Height Weight
5ft 3″ (63″) 107 to 135 lbs. 141 to 163 lbs.
5ft 4″ (64″) 110 to 140 lbs. 145 to 169 lbs.
5ft 5″ (65″) 114 to 144 lbs. 150 to 174 lbs.
5ft 6″ (66″) 118 to 148 lbs. 155 to 179 lbs.

What is the BMI of 5/4 female?

This table shows us that a woman who is 5 ft. 4 in. tall is considered overweight (BMI is 25 to 29) if she weighs between about 145 and 169 pounds. She is considered obese (BMI is 30 or more) if she is closer to 174 pounds or more.

How do you calculate BMI in kg and feet?

For example, if your weight is 60 kilograms and your height is 5 feet 3 inches, your BMI will be calculated as follows:60 / 2.61 (1.6 * 1.6) (5 feet 3 inches is approximately 1.6 meters)This gives us a BMI reading at 22.9. Why is BMI calculation important for your health?

What is good BMI?

For most adults, an ideal BMI is in the 18.5 to 24.9 range. For children and young people aged 2 to 18, the BMI calculation takes into account age and gender as well as height and weight.

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How do you calculate BMI with height and weight?

With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared. Since height is commonly measured in centimeters, an alternate calculation formula, dividing the weight in kilograms by the height in centimeters squared, and then multiplying the result by 10,000, can be used.

What is the normal BMI for South Africa?

How to calculate your BMI.

BMI (kg/m²) Approx. pants size
Underweight <18.5
Normal 18.5 – 24.9 Men ≤ 36/ Women ≤ 40 (US 14)
Overweight 25 – 29.9 Men ≥ 38/ Women ≥ 42 (US 16)
Obesity >30.0 Men ≥ 42/ Women ≥ 44 (US18)

What is my ideal weight in kg?

Ideal body weight (men) = 50 kg + 1.9 kg for every inch above 5 feet. Ideal body weight (women) = 49 kg + 1.7 kg for every inch above 5 feet.

What is a good BMI for a woman?

A BMI of 18.5–24.9 is considered normal or healthy for most women. Even though healthcare professionals can use BMI as a screening tool, they shouldn’t use it as a method to evaluate a person’s body fat levels or health status ( 32 ). Keep in mind that health is much more than body weight or body composition.

Is a BMI calculator accurate?

As most of us fitness-focused folks have likely heard, BMI is far from a perfect measurement. Much of the time, and often when it really counts, the BMI measurement may actually overestimate or even underestimate a person’s body fat. And when it does, it really does.

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How do I know if I am overweight?

Adult Body Mass Index (BMI)

  1. If your BMI is less than 18.5, it falls within the underweight range.
  2. If your BMI is 18.5 to <25, it falls within the healthy weight range.
  3. If your BMI is 25.0 to <30, it falls within the overweight range.
  4. If your BMI is 30.0 or higher, it falls within the obesity range.
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