The basic difference is that inches is an imperial unit of measurement, and millimeters is a metric system of measurement. Difference Between Inches and Millimeters All other calculations can be done on the basis of the same. The standard 1 inch to mm, establishes a ratio of 25.4. If you know the metric system measurements, there can be several methodologies to make simple conversions. We can easily convert between the two by computing the relationship between these units. To note, the standard ratio between the two would be 1inch=25.4 mm. On the other hand, millimeters lie in the metric system of measurement. Inches lie in the imperial system of measurement. For example:ġ5inch to mm would be : 15 X 25.4 = 381mmġ6 inches to mm would be: 16 X 25.4 = 406.4mm Relationship between Inches to Millimeters conversion

The Formula for Converting from Inches to Millimetersįor any value of inch or millimetre, you can make conversions easily. So, for example, if you have 5 inches to convert, you can multiply the value by 2.54. For example, to convert inches to centimetres, you need to bullet the conversion factor of 2.54 (1 centimeter= 10 millimetres). You can then look for the conversion factor that would allow you to attain the units you intend for. To convert this into mm, you can multiply five by 25.4, 127mm. The dimensions of the CD are 5 inches wide and 5 inches long. You can easily convert inches to millimetres in seconds using an accurate multiplication factor.Īn easy way to measure and then convert the unit is to compute the distance using a measuring tape or a ruler and then multiply it by the value of 25.4įor example, a CD jewel case is almost five inches long and five inches wide you can multiply the value by 25.4 to obtain the value in mm. It is important to note that the metric system is expressed in units of 10, and defining the gap between meters, centimetres, and millimeters becomes easy to calculate.

While working with a metric system of measurements, converting inches to millimetres can be done using basic mathematical formulas and equations.

Inch to mm chart