How to Convert Millimeters Into Thousandths of an Inch

Inches and millimeters measure distance.
••• the ruler image by timur1970 from

Just as larger measurements have a multitude of different units to gauge them, so do smaller measurements. The millimeter and thousandth of an inch are two minute units of length and distance. The millimeter is a minuscule measurement based on the meter. The thousandth of an inch, also known as a thou or a mil, is employed in arenas where exact precision is important. The millimeter is like the thousandth of an inch in that it is also a thousandth of a meter. You can convert millimeter measurements to thousandths-of-an-inch equivalents by conversion factors for inches, modified for a smaller size.

    Multiply the measurement in millimeters by 39.3700787402 to convert the measurement to thousandths of an inch. For an example, 500 mm multiplied by 39.3700787402 converts to 19685.0394 thousandths of an inch.

    Divide the millimeter measurement by 0.0254 to also convert to a measurement in thousandths of an inch. As an example, the same length of 500 mm divided by 0.0254 also converts to 19685.0394 thousandths of an inch.

    Convert the millimeter measurement to its equivalent in thousandths of an inch with a conversion website like Convert Units. Enter the number of millimeters where prompted, and then click the "Convert!" button. The conversion will appear underneath the original amount.

Related Articles

How to Convert Inches to 16ths of an Inch
How to Convert Decimal Inches into Mm
How to Calculate Metric Conversions
How to Convert Mils to Gauge Thickness
Centimeters to Feet and Inches Conversion
How to Convert 48 Millimeters to Inches
How to Convert mmHg to a kPa
How to Convert Inches to Mm
How to Measure Meters in Feet
How to Calculate Height in Centimeters
How to Convert Grams Per Meter Squared to Pounds Per...
How to Read a Meter Stick
How to Convert Tenths to Hundredths
How to Convert Foot-Candles to Lux
How to Convert Decimals Into Feet, Inches and Fractions...
How to Convert SCM to SCF
How to Convert RPM to Radians
How to Convert Centimeters to Meters
How to Convert FT LB to IN LB