size of pouch of AMO BELT

i have great difficult to converted in centimer the f..... inches size
1 5/8 for exemple , why the english size not clear same of centimeter ?
1 5/8 is same of 1,62 inches ? (because 5/8 = 0,625)
why make simple when you can make difficult ?
in france 2,33 centimeter is 2,33 centimeter, anybody used 2 1/3 because is not clear : is it 1/3 of 2 centimeter = 0,66 centimeter or 1/3 of 1 centimeter = 0,33 centimeter ???
sorry for my irritation but it's more difficult to make a costume and if in more it is necessary to catch a headache with these story of conversions!
thanks to help me !
(for info the electronic converter not work with this number !)

no it doesn't work with a number like 1 5/8

but it does work with 1,62 (or 1.62)

the 62 you get if you multiply 5/8 on a calculator with 100.

woops screwed up, your right

1.62 inch = 4.11 cm

thanks for your answer ! i start the belt's construct ! ouf !

Can you not buy a ruler with both inches and centimeters on it? We have those in the states, makes it much easier for conversion.

Frank

I got one laying around here aswell... somewhere, never really use it though...

most of the time I look at the lengths in inches, then I start calculating at what percentage I need to print them or draw them etc in CM.

maybe I should start using the ruler

in france it's difficult to found the ruler in inches and i think inches was not precis (precision ?) for correct mesure. In metric systeme you are millimeter, centimeter ! the millimetric is more precision ! (ten millimeter = one centimeter)

Try this http://www.onlineconversion.com/length_common.htm You will have to convert them to decimal points. 3 3/8 = 3.375 inch = 8.5725 centimeter etc. You can convert it to millimeters as well. I agree that our way of measuring can be a lot more confusing than the metric system.

thanks for your help ! i can start my amo belt !