645 millimeters is equal to 0.65 meters.

convert 645 millimeters into Centimeters, Meters, Kilometers, Inches, Yards, US Survey Feet, Feet, Miles, etc...

convert 1 meter into Millimeters, Centimeters, Kilometers, Inches, Yards, US Survey Feet, Feet, Miles, etc...

length:
Centimeters to US Survey Feet

Guess what time it is in Okinawa?