42 millimeters is equal to 4.2 centimeters.

convert 42 millimeters into Centimeters, Meters, Kilometers, Inches, Yards, US Survey Feet, Feet, Miles, etc...

convert 4 centimeters into Millimeters, Meters, Kilometers, Inches, Yards, US Survey Feet, Feet, Miles, etc...

angle:
gradians to arcseconds

Guess what time it is in Tokyo?