A good way to see whether you could do with losing that extra bit of weight is by calculating your Body Mass Index (BMI).

The reason this is the best method is because it's not your thoughts on how thin you should be, but rather, scientifically what your weight should be - for you to be at your optimum.

So this is how you work it out:

The formula is: Weight / Height Squared
(Your weight divided by your height squared).

So for example:
Say your height is 1.57m, and your weight is 50kg.
50/(1.57x1.57) = 20.28

Now for the most important part - to see how your weight is in relation to your height:


Below 18.5 Underweight
18.5 – 24.9 Normal
25.0 – 29.9 Overweight
30.0 and Above Obese

So in the calculation above, the person is "Normal" ie. at their ideal weight.

Happy Calculating!

hey, i'm normal (and i thought i was all kinds of skinny)

22.4

I'm 28.9 - that's taking what I last saw and adding 4 extra kilos think I'm getting overweighted...

BMI is a joke, it doesnt take into account muscle mass.

So a bodybuilder for example is classified as obese?

Pointless

I attempted one of those Tests at PLanet fitness... and that automatic BMI checker told me that I'm 10kg overweighted... WTF?

It even tells me that I have high blood pressure

i don't think that it's meant to be 100% accurate. rather an approximation of where you stand.

if you're a body builder, i'm sure you'd know exactly how healthy you are, and you would thus disregard the BMI.

The BMI was not made for body-builders. It's made as a calculation for ordinary people - I doubt any bodybuilder would depend on it either.



Too true. As I said: It's your weight in relation to your height - it's not including technical things such as your muscle mass.

To get an accurate indication of BMI (with muscle, fat and bone mass taken into account), you need to see a doctor... ya can't just work it out on yr own. BMI isn't accurate... I'm 5kg underweight acording to BMI... and that can't be true...