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Mil (mil)

One thousandth of an inch, used in engineering and manufacturing.

Result0.0254

1 mil = 0.0254 millimeters

Mil at a glance

Unit nameMil (plural: mils)
Symbolmil
Quantity measuredLength
Measurement systemUS customary
Also known asthou, thousandth of an inch
Definition exact?Yes — exact by definition

1 mil in other length units

Unit1 mil equals
Nanometer25,400 nm
Micrometer25.4 µm
Millimeter0.0254 mm
Centimeter0.00254 cm
Decimeter0.000254 dm
Meter0.0000254 m
Kilometer2.54 × 10⁻⁸ km
Inch0.001 in
Foot0.000083333 ft
Yard0.000027778 yd
Mile1.57828283 × 10⁻⁸ mi
Nautical mile1.37149028 × 10⁻⁸ nmi
Angstrom254,000 Å
Fathom0.000013889 ftm
Rod0.000005051 rd
Chain0.000001263 ch
Furlong0.000000126 fur
League5.26094276 × 10⁻⁹ lea
Astronomical unit1.69788513 × 10⁻¹⁶ au
Light-year2.68478212 × 10⁻²¹ ly
Parsec8.2315794 × 10⁻²² pc

Frequently asked questions

What is a mil?
One thousandth of an inch, used in engineering and manufacturing.
What is the symbol for the mil?
The symbol for the mil is mil. It measures length.
How many millimeters are in a mil?
1 mil = 0.0254 millimeters.
How many centimeters are in a mil?
1 mil = 0.00254 centimeters.
How many meters are in a mil?
1 mil = 0.0000254 meters.