Micrometers to inches
Type a value in micrometers to see it in inches straight away, or type in the second box to convert back.
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How to use it
- Type the value in the micrometers box.
- Read the result in inches as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
in = µm × 0.00003937007874
Multiply the value in micrometers by 0.00003937007874 to get inches.
Example
To convert 25 µm to inches: 25 × 0.00003937007874 = 0.000984252 in.
Conversion table
| Micrometers (µm) | Inches (in) |
|---|---|
| 1 | 0.0000393701 |
| 2 | 0.0000787402 |
| 3 | 0.00011811 |
| 5 | 0.00019685 |
| 10 | 0.000393701 |
| 20 | 0.000787402 |
| 25 | 0.000984252 |
| 50 | 0.0019685 |
| 100 | 0.00393701 |
| 250 | 0.00984252 |
| 500 | 0.019685 |
| 1,000 | 0.0393701 |
About the units
- Micrometer
- A micrometer (micron) is one millionth of a meter, used for hair width, filters and coating thickness.
- Inch
- An inch is exactly 2.54 centimeters under the 1959 agreement, used for screens, tyres and pipes.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many inches are in one micrometer?
1 µm = 0.0000393701 in exactly.
How do I convert micrometers to inches?
Use in = µm × 0.00003937007874. For example, 25 µm = 0.000984252 in.
How many micrometers are in one inch?
1 in = 25,400 µm.
Are the inch, foot and mile factors exact or rounded?
They are exact by definition. Since the 1959 agreement one inch is exactly 2.54 cm, one foot 0.3048 m and one mile 1609.344 m.
What is the difference between a mile and a nautical mile?
A statute mile is 1609.344 meters and is used on roads. A nautical mile is 1852 meters and is used at sea and in aviation.