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.
What is the normal BMI for South Africa?
| 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) |
How is BMI calculated formula?
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.
How is BMI calculated manually?
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 I figure my 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.
What weight should I be to have a BMI of 30?
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 with height 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.
What BMI example?
The body mass index (BMI) is a measure that uses your height and weight to work out if your weight is healthy. The BMI calculation divides an adult’s weight in kilograms by their height in metres squared. For example, A BMI of 25 means 25kg/m2.
How are calories calculated?
- If you are sedentary (little or no exercise) : Calorie-Calculation = BMR x 1.2.
- If you are lightly active (light exercise/sports 1-3 days/week) : Calorie-Calculation = BMR x 1.375.
What is normal BMI?
If your BMI is 18.5 to 24.9, it falls within the normal or Healthy Weight range. If your BMI is 25.0 to 29.9, it falls within the overweight range. If your BMI is 30.0 or higher, it falls within the obese range.
How do I calculate my child’s BMI?
- Take your child’s weight in pounds. (For example, 37 pounds, 4 ounces becomes 37.25.)
- Divide that number by 2.2. (So, 37.25 divided by 2.2 equals 16.9 kilograms.).
- The resulting number is your child’s weight in kilograms.