mm to inches (Millimeters to Inches) - Metric Conversion To convert mm to inches you need to divide the value in mm by 25 4 as there are this many millimeters in an inch For example, suppose you have a length of 100 millimeters and you want to convert it to inches: divide 100 by 25 4 which gives approximately 3 937 inches
Inch to mm (inches to millimeters) - Metric Conversion To convert inches to mm you need to multiply the value in mm by 25 4 as there are this many millimeters in an inch For example, suppose you have a length of 100 inches and you want to convert it to millimeters: multiply 100 by 25 4 which gives you 2,540mm