Micrometer to Millimeter Conversion Calculator: Free Online Tool
Convert micrometers to millimeters with our free online length converter.
Micrometer to Millimeter Calculator
How to Use the Calculator:
- Enter the value you want to convert in the 'From' field (Micrometer).
- The converted value in Millimeter will appear automatically in the 'To' field.
- Use the dropdown menus to select different units within the Length category.
- Click the swap button (⇌) to reverse the conversion direction.
How to Convert Micrometer to Millimeter
Converting Micrometer to Millimeter involves multiplying the value by a specific conversion factor, as shown in the formula below.
Formula:
1 Micrometer = 0.001 millimetersExample Calculation:
Convert 10 micrometers: 10 × 0.001 = 0.01 millimeters
Disclaimer: For Reference Only
These conversion results are provided for informational purposes only. While we strive for accuracy, we make no guarantees regarding the precision of these results, especially for conversions involving extremely large or small numbers which may be subject to the inherent limitations of standard computer floating-point arithmetic.
Not for professional use. Results should be verified before use in any critical application. View our Terms of Service for more information.
What is a Micrometer and a Millimeter?
A micrometer, also known as a micron, is a unit of length equal to one millionth of a meter (1×10⁻⁶ m).
The millimeter is a unit of length in the metric system equal to one-thousandth of a meter (1/1000 m) or one-tenth of a centimeter (1/10 cm). It is used for very precise measurements.
Note: The Micrometer is part of the metric (SI) system, primarily used globally in science and trade. The Millimeter belongs to the metric (SI) system.
History of the Micrometer and Millimeter
The term micron was officially accepted between 1879 and 1967 but later deprecated. Micrometer is the current standard term.
Defined as a subunit of the meter within the original metric system, the millimeter provides a standard unit for fine measurements required in science, engineering, and manufacturing.
Common Uses for micrometers and millimeters
Explore the typical applications for both Micrometer (metric) and Millimeter (metric) to understand their common contexts.
Common Uses for micrometers
- Measuring microscopic objects (e.g., bacteria, cells)
- Precision engineering tolerances
- Semiconductor manufacturing
Common Uses for millimeters
- Engineering & Machining: Precise engineering and machining measurements.
- Technical Design: Technical drawings and specifications.
- Electronics: Measuring small electronic components or wire gauges.
- Meteorology: Measuring rainfall amounts.
- Science: Scientific measurements requiring high precision (e.g., microscopy).
Frequently Asked Questions
Questions About Micrometer (μm)
Is a micrometer the same as a micron?
Yes, 'micron' is an older, deprecated name for the micrometer (μm). Both refer to one millionth of a meter.
How many micrometers are in a millimeter?
There are 1,000 micrometers (μm) in 1 millimeter (mm).
What are some examples of things measured in micrometers?
Examples include the diameter of human hair (around 50-100 μm), bacteria (typically 1-10 μm), and the thickness of plastic bags.
About Millimeter (mm)
How many millimeters are in a centimeter?
There are 10 millimeters (mm) in 1 centimeter (cm).
How many millimeters are in a meter?
There are 1,000 millimeters (mm) in 1 meter (m).
What does 'milli' mean in millimeter?
The prefix 'milli' denotes one-thousandth (1/1000).
Conversion Table: Micrometer to Millimeter
| Micrometer (μm) | Millimeter (mm) |
|---|---|
| 1 | 0.001 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1,000 | 1 |