How to Calculate your BMI
BMI which is also known as Body Mass Index is an easy way to compare your height to your weight and gives you a signal of whether you are underweight, overweight or at a healthy weight for your height. Be aware of the fact that BMI do not match actual body fat percentage, but is a close way of determining this figure. Know that a BMI might suggest riskier levels of excess weight. As a result of this, an accurate measure requires to be calculated through more detailed individual medical information. There are a number of ways to find out your BMI with good effect.
Things Required:
– Scale
– Tape measure
– Piece of cardboard
Instructions
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1
Calculate your weight on a scale
Measure your present weight on an accurate scale. Place yourself against a wall or door and put a flat piece of cardboard on top of you. Ask someone to mark on the wall with the help of a pencil just on top of the cardboard. After that, measure its height in meters and centimetres or in feet and inches. Use any of these formulas for US units, depending on how the calculations were made that is BMI is equal to weight in lbs. times 703 divided by height in inches squared. On the other hand, you can also have BMI is equal to weight in lbs. times 4.88 divided by height in feet squared. For instance a person weighs 172 lbs. and his height is 6 feet 1 inch tall. Then his BMI would be calculated as BMI = (172 X 703) / (73 X 73) = 120916 / 5329 = 22.7 rounded to one decimal place. -
2
BMI determined by metric units
Moreover, you can also find out BMI with the help of metric units with the given formula: BMI is equal to weight in kilograms divided by height in meters squared. If we use the same height and weight as in above, which is now 1.85 meters and 78.2 kilograms get you BMI is equal to 78.2 / (1.85 X 1.85) = 78.2 / 3.4 = 22.8 rounded to a one decimal point. Be aware of the fact that the metric result might be different from the US measure because of the rounding offs. -
3
Is it overweight or underweight?
See whether the BMI calculated fits on the scale from underweight to overweight. Underweight is 17.9, normal weight is 18 to 25, overweight is 25.1 to 29.9 and above that is obese.
