While a millimeter(mm) is a metric unit equal to one thousandth of a meter, an inch(in) is also a unit of length in the imperial and United States customary systems of measurement.
Formula to convert mm to in.
To convert mm to in, we have to know there relationship first.
We are told that 1 inch is equivalent to 25.4 mm.
Therefore, to convert mm to in we divide the mm value by 25.4.
Convert 508 millimeters to inches.
= 508 ÷ 25.4
= 20 inches.