**Now lets calculate our BMI or body mass index.**

Lets say Sandra is 1.60 meters tall and weighs 70 kilos.

1.60 x 1.60 = 2.56

70 ÷ 2.56 = 27.34

Sandra's BMI is 27.34

From the BMI chart given below, you can see that Sandra is overweight.

Normal BMI is between 18.5 and 25.

BMI - CHART

Severely underweight

less than 16.0

Severely underweight

less than 16.0

Underweight

from 16.0 to 18.5

Normal

from 18.5 to 25

Overweight

from 25 to 30

Obese Class I

from 30 to 35

Obese Class II

from 35 to 40

from 35 to 40

Obese Class III

over 40

So what is the ideal weight range for Sandra?

18.5 x 2.56 = 47.36 Kg

25 x 2.56 = 64 Kg

The ideal weight range for Sandra is between 47.36 and 64 kilos.

referred source: Wikipedia

http://en.wikipedia.org/wiki/Body_mass_index

http://en.wikipedia.org/wiki/Body_mass_index

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