Length and Area
miltom
Convert mils (mil) to metres (m).
Factor1 mil = 2.54e-5 m
Converter
mil
Accepts numbers or expressions, e.g. 150 + 14.7
Result
m
Rendered to 6 significant figures.
Formula
Formula
m = mil × 2.54e-5
Multiply any value in mils by 2.54e-5 to obtain the value in metres.
Worked example
Convert 100000 mil to m.
- 01Start with 100000 mil.
- 02Multiply by the conversion factor: 100000 × 2.54e-5 = 2.54 m.
Result100000 mil = 2.54 m
Conversion table
| mil | m |
|---|---|
| 1 | 2.54e-5 |
| 2 | 5.08e-5 |
| 5 | 0.000127 |
| 10 | 0.000254 |
| 20 | 0.000508 |
| 50 | 0.00127 |
| 100 | 0.00254 |
| 200 | 0.00508 |
| 500 | 0.0127 |
| 1000 | 0.0254 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mil to m?
1 mil equals 2.54e-5 m. To convert, multiply the value in mils by 2.54e-5.
How do I convert 1 mil to m?
1 mil = 2.54e-5 m. For any value, multiply by 2.54e-5.
How do I convert m back to mil?
Divide by the same factor — or equivalently, multiply by 39370.08. So 1 m = 39370.1 mil.
When would I need to convert mil (thousandth of an inch) to metre?
Length conversions appear in piping, layout, and mechanical drawings — particularly when reconciling imperial fittings or instrument lengths with metric plant drawings.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).