# Frequent question: What measurements do you need to calculate BMI?

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Then, calculate BMI by dividing weight in pounds (lb) by height in inches (in) squared and multiplying by a conversion factor of 703.

## What measurements are needed for BMI?

Body mass index (BMI) is the ratio of weight to height, calculated as weight (kg)/height (m2), or weight (lb)/height (in2) multiplied by 703. Hundreds of studies show that a high BMI predicts higher risk of chronic disease and early death.

## Which three measurements are needed to calculate a person’s BMI?

Because height is commonly measured in centimeters, divide height in centimeters by 100 to obtain height in meters. Calculate BMI by dividing weight in pounds (lbs) by height in inches (in) squared and multiplying by a conversion factor of 703.

## How do you calculate BMI and waist circumference?

The correct place to measure your waist is halfway between your lowest rib and the top of your hipbone. This is roughly in line with your belly button. Breathe out normally and measure. Make sure the tape is snug, without squeezing the skin.

## How do you calculate BMI manually?

Formula: weight (lb) / [height (in)]2 x 703

Then, calculate BMI by dividing weight in pounds (lb) by height in inches (in) squared and multiplying by a conversion factor of 703.

## How do you calculate BMI in pounds and inches?

Body Mass Index, or BMI, is a measurement of body fat based on height and weight. It can be calculated using pounds and inches: BMI = (weight in pounds x 703) / (height in inches x height in inches).

## What is the normal BMI of a person?

BMI ranges

below 18.5 – you’re in the underweight range. between 18.5 and 24.9 – you’re in the healthy weight range. between 25 and 29.9 – you’re in the overweight range. between 30 and 39.9 – you’re in the obese range.

## How do you measure BMI at home?

DIY: To determine your BMI, divide your weight (in pounds) by your height (in centimeters) squared, and multiply that number by 703.

## Where is your waist for measurements?

• Start at the top of your hip bone, then bring the tape measure all the way around your body, level with your belly button.
• Make sure it’s not too tight and that it’s straight, even at the back. Don’t hold your breath while measuring.
• Check the number on the tape measure right after you exhale.

## What is the proper way to measure your waist?

Find the top of your hip bone and the bottom of your ribs. Breathe out normally. Place the tape measure midway between these points and wrap it around your waist. Check your measurement.

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## How do you calculate BMI with height and feet?

Example 2 (Calculating BMI in US units)

1. 5 feet, 10 inches = 70 inches.
2. BMI = (w ÷ h2) * 703.
3. BMI = (184 ÷ 702) * 703.
4. BMI = (184 ÷ 4900) * 703.
5. BMI = 0.3755 * 703.
6. BMI = 26.4.

## 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.