Both the centimeter(cm) and the millimeter(mm) are metric units of length.
The cm is one hundredth of a meter while a mm is one thousandth of a meter.
Formula to convert cm to mm.
To convert cm to mm we do need to know the conversion ratio.
We know that 1 cm is equivalent to 10mm.
Therefore, to convert cm to mm, we multiply the cm value by 10.
Length in mm = Length in cm x 10
Convert 45 centimeters to millimeters.
= 45 x 10