Convert Thou (mil) to Millimeters

Thou (mil) → Millimeters
thou × 0.0254 = mm mm × 39.37008 = thou

To convert thou (mil) (thou) to millimeters (mm), multiply the thou (mil) value by 0.0254. 1 thou = 0.0254 mm, and 1 mm = 39.37008 thou. The conversion is a linear scaling with no offset, so the same factor applies to any value.

Going the other way? Convert mm to thou.

thou to mm table
Thou (mil) (thou) Millimeters (mm)
0.1 thou 0.00254 mm
0.5 thou 0.0127 mm
1 thou 0.0254 mm
2 thou 0.0508 mm
5 thou 0.127 mm
10 thou 0.254 mm
20 thou 0.508 mm
50 thou 1.27 mm
100 thou 2.54 mm
500 thou 12.7 mm
1000 thou 25.4 mm
Common linear distance ranges
Typical real-world values (mm)
Application Typical range
Precision positioning stroke 1 – 50 mm
Linear actuator stroke 50 – 500 mm
Gantry axis travel 500 – 5,000 mm
Long-travel transport 5,000 – 50,000 mm