Body Mass Index

The Body Mass Index (BMI) is invented in the 19. century by Adolphe Quetelet to evaluate the body mass.

Formula:
Body weight in Kilogramm divided through body size in Meter to the second

It's more easy to use an online bmi calculator

The meaning:

Meaning (WHO):

BMIt	Meaning
less than 19	Unterweight
19 to 25	Normal weight
25 to 30	Over weight
30 to 35	Obesity 1
35 to 40	Obesity 2
more than 40	Obesity 3

Meaning (NRC 1989):

Age	BMI Normal weight
19–24	19–24
25–34	20–25
35–44	21–26
45–54	22–27
55–64	23–28
Ab 65	24–29

Want to loose weight? Then read this book: Leben ohne Diät. On the page you find a english translation of the original german book. The title means something like "Loosing weight without diet".