French anthropologist Paul Broca suggested this formula.
The formula is very simple - your ideal weight is your height minus coefficient.
The coefficient depends on height.
If your height is below 165 cm, the coefficient is 100, between 165 and 175 cm, the coefficient is 105, above 175 cm, the coefficient is 110.
Several factors can also modify the obtained weight.
The first factor is your age. For 20-30 year old people, weight should be decreased by 11 percents, for over 50 years people - increased by 6 percents.
Second factor is body constitution: asthenic, normosthenic or hypersthenic.
Body constitution type can be found by wrist girth.
less than 17 cm - asthenic
17 - 20 cm - normosthenic
more than 20 cm - hypersthenic
less than 16 cm - asthenic
16 - 18 cm - normosthenic
more than 18 cm - hypersthenic
For asthenic body type, weight should be decreased by 10 percent. For hypersthenic body type, weight should be increased by 10 percent.
Critics of this formula usually appeal to the fact that Paul Broca, as a founder of modern anthropology, develops his formula using average values for people of the second half of the XIX century. This is not suitable for people of the XX and XXI centuries.
The calculator can be found below.