Conversion shown both ways. Conversion factor: 1" = 25.4 mm exactly. See how it is used. Further details on relating decimal inches to inches-fractions of an inch can be seen under the title "Convert feet-inches to decimal inches".
Wow inches etc I feel smart that I can do about anything in the inche, mile, etc however when I do cm,mm,etc it feels like triple the work and like I am trying to impress . I will stay with the inche
Yup, conversions between systems is triple work, always involves freak fractions or nonsensical decimals. Conversions are only easy within a system. Thanks for watching.