Mil (thou) (mil)
One thousandth of an inch.
What is a mil?
- Symbol
- mil
- Quantity
- Length
- Unit system
- US customary
- Definition
- One thousandth of an inch.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in the United States for the thickness of plastic film, coatings, paper and wire insulation.
Mil (thou) in other length units
- 1 mil = 25400 nmNanometer
- 1 mil = 25.4 µmMicrometer
- 1 mil = 0.0254 mmMil (thou) to Millimeter converter
- 1 mil = 0.00254 cmCentimeter
- 1 mil = 0.0000254 mMeter
- 1 mil = 2.54e-8 kmKilometer
- 1 mil = 254000 ÅÅngström
- 1 mil = 0.001 inInch
- 1 mil ≈ 0.00008333333333 ftFoot
- 1 mil ≈ 0.00002777777778 ydYard
- 1 mil ≈ 1.578282828e-8 miMile
- 1 mil ≈ 1.371490281e-8 nmiNautical mile
Mil (thou) quick reference
| Mil (thou) | Millimeter | Meter | Foot |
|---|---|---|---|
| 1 mil | = 0.0254 mm | = 0.0000254 m | ≈ 0.00008333333333 ft |
| 10 mil | = 0.254 mm | = 0.000254 m | ≈ 0.0008333333333 ft |
| 100 mil | = 2.54 mm | = 0.00254 m | ≈ 0.008333333333 ft |
| 1000 mil | = 25.4 mm | = 0.0254 m | ≈ 0.08333333333 ft |
Where the mil fits
The next smaller length unit is the micrometer (µm). 1 mil = 25.4 µm, and 1 µm ≈ 0.03937007874 mil.
The next larger length unit is the millimeter (mm). 1 mil = 0.0254 mm, and 1 mm ≈ 39.37007874 mil.
Frequently asked questions
- How many millimeters are in one mil?
- One mil = 0.0254 mm (millimeters).
- How many meters are in one mil?
- One mil = 0.0000254 m (meters).
- How many feet are in one mil?
- One mil ≈ 0.00008333333333 ft (feet).