Help

[Alyx85]

Hey guys I'm having trouble on how to create this code for a program that displays the dimensions of a letter-size (8.5 x 11 inches) sheet of paper in millimeters. There are 25.4 millimeters per inch. Help please! Thanks

[MiiNiPaa]

Maybe this will ring a bell:
size_in_mm = size_in_inches * mm_per_inch