The following is the mathematical connection between mm to inches: 0.0393701 inch = 1 millimetre 25.4 millimetres = 1 inch. Unit conversion is one of those tasks that we perform in our day to day life. In many situations, you may need to convert millimeters (mm) to inches (in).
What is mm (Millimeters)?
A millimeter is a small unit of displacement (length/distance) in the metric system. A millimeter is one thousandth of a meter. There are 25 millimeters in an inch. One millimetre is equal to 1000 micrometres or 1000000 nanometres.
What is Inches?
An inch can be defined as a unit of length in the customary system of measurement. The symbol for inches is the double prime (″), not double quotation marks (”) or straight quotation marks (") or (gasp!) two single quotation marks in a row ('').
How to use formula to convert mm to inches?
To convert mm to inches, you must multiply the unit by 0.039.
Inches = MM X 0.0393701
How to convert millimeters to inches?
You have to multipl the number of millimeters by 0.0393700787 inches or by dividing the number of millimeters by 25.4 millimeters. The fastest and easiest way to convert mm (millimeters) to inches is use this simple formula:
inches = millimeters ÷ 25.4
The formula to convert millimeters to inches is the length divided by 25.4.
CONVERSION TABLE
Example:-
For example, here's how to convert 5 mm to inches using the formula above.
5 mm = (5 ÷ 25.4) = 0.1968504"
a) 1 millimeter is equal to 0.03937007874 inches:
1mm = (1/25.4)″ = 0.03937007874″
The distance d in inches (″) is equal to the distance d in millimeters (mm) divided by 25.4:
d(″) = d(mm) / 25.4
b) Convert 20 mm to inches:
d(″) = 20mm / 25.4 = 0.7874″