## What is the 703 in the BMI formula?

The formula for BMI is weight in kilograms divided by height in meters squared. If height has been measured in centimeters, divide by 100 to convert this to meters. When using English measurements, pounds should be divided by inches squared. This should then be multiplied by 703 to convert from lbs/inches2 to kg/m2.

**What does BMI 703 do?**

To find your BMI you take your weight in kilograms and divide it by the square of your height in meters. The 703 is needed for converting pounds to kilograms and inches to meters. (You can tell right away the European origin of the measure.)

### Which among the BMI below is considered normal?

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

**How do you calculate BMI?**

BMI is a mathematical calculation of your weight (in pounds) times 703 divided by your height (in inches) squared. You can figure out your BMI on your own using this formula: BMI = Weight (in pounds) x 703 divided by Height (in inches) squared. You can use online calculators to figure out your BMI: Children and Teens (age 2-19) and Adults (age 20+).

#### What is the formula to calculate BMI manually?

The body mass index (BMI) is a ratio of your height and weight. To calculate your BMI, use this formula: weight (lb) / [height (in)]2 x 703. Calculate BMI by dividing weight in pounds (lbs) by height in inches (in) squared and multiplying by a conversion factor of 703. Example: Weight = 150 lbs, Height = 5’5″ (65″)

**What is the metric formula for BMI?**

Calculating BMI Using the Metric System. With the metric system, the formula for BMI is weight in kilograms divided by height in meters squared.

## How accurate is body mass index, or BMI?

BMI is not an accurate predictor of health because it does not account for body fat percentage or body fat distribution. In addition, BMI cannot accurately predict the health of different demographics and races because it was created with data from only white Europeans.