Micrometers to Meters
Type a value in either box to convert between micrometers and meters. The factor is 1e-06.
| Micrometers | Meters |
|---|---|
| 1 µm | 1e-06 m |
| 2 µm | 2e-06 m |
| 3 µm | 3e-06 m |
| 5 µm | 5e-06 m |
| 10 µm | 1e-05 m |
| 25 µm | 2.5e-05 m |
| 50 µm | 5e-05 m |
| 100 µm | 0.0001 m |
How to use
- Enter a value in the Micrometers field.
- The Meters figure appears immediately — no button to press.
- Typing in the Meters field converts back to Micrometers the same way.
- Use the reference table for the values that come up most often.
Micrometers to Meters formula
To convert micrometers to meters, multiply by 1e-06.
m = µm × 1e-06
Why this factor: the micrometer and the meter are both defined against the meter, so dividing one definition by the other gives 1e-06 directly. Both definitions are set out in full below.
To go the other way, divide by 1e-06 — or use the Meters to Micrometers converter, which is the same calculation reversed.
Worked example
Take 100 µm and multiply by the factor 1e-06: the result is 0.0001 m.
100 µm × 1e-06 = 0.0001 m
The converter above does this for any value you type, in either direction.
What is a micrometer?
A micrometer, or micron, is one millionth of a meter — the scale of cells, fibers and semiconductor features.
Definition: Exactly 1×10⁻⁶ meter by SI prefix definition. Symbol µm.
Where it is used: Filtration ratings, particulate sizes (PM2.5 is 2.5 µm), fiber diameters, optical wavelengths.
Worth knowing: Often written 'micron' in industry. A human hair is roughly 70 µm across.
What is a meter?
The meter is the SI base unit of length — the reference every other length unit is now defined against.
Definition: Since 1983 the meter has been defined by fixing the speed of light in vacuum at exactly 299,792,458 meters per second, so a meter is the distance light travels in 1/299,792,458 of a second.
Where it is used: Universal in science, engineering and everyday measurement everywhere except the United States.
Micrometers vs Meters
The micrometer is a metric unit while the meter is an SI unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many meters are in a micrometer?
One micrometer equals 1e-06 meters.
What is the formula to convert micrometers to meters?
Multiply the number of micrometers by 1e-06. To reverse it, divide by 1e-06 instead.
How do I convert meters back to micrometers?
Divide by 1e-06, which is the same as multiplying by 1000000.
How many meters are in 10 micrometers?
10 µm works out to 1e-05 m.
Is there anything to watch out for with micrometers?
Often written 'micron' in industry. A human hair is roughly 70 µm across.
How is the micrometer defined?
Exactly 1×10⁻⁶ meter by SI prefix definition. Symbol µm.