The Millimeter

The millimeter is a unit of length in the metric system equal to one thousandth of a meter.  1 millimeter is about the thickness of a paper clip.  It is roughly one-sixteenth of an inch.  It is the smallest measurement on a normal ruler.  Ten millimeters equals one centimeter.  One thousand millimeters equals a meter.

¼ Inch =  6.35mm

½ inch = 12.70mm

1 inch = 25.40mm

Please refer to http://www.metric-conversions.org/length/millimeters-to-inches.htm  to convert millimeters to inches.

Some examples of measuring with millimeters would include film, earthquakes, waves, diamonds and diamond jewelry.