Select a category and enter your values below
To convert from Millimeter (mm) to Micrometer (μm), use the following formula:
Micrometer (μm)
= 11000 × 106× Millimeter (mm)
= 1000× Millimeter (mm)
Let's convert 5 Millimeter (mm) to Micrometer (μm).
Using the formula:
5 × 1000 = 5000
Therefore, 5 Millimeter (mm) is equal to 5000 Micrometer (μm).
How many millimeters are in one micrometer? One Micrometer (μm) contains 0.001 Millimeters (mm) — the inverse of the factor above. Multiplying by 1000 takes you from millimeters to micrometers; multiplying by 0.001 brings you back.
Put in words: one millimeter equals 1000 micrometers, so the millimeter is the larger unit of this pair. Converting between them never changes the amount of length being measured — only the size of the unit you count it in.
A millimeter (mm) is a small unit of length in the metric system, equal to one-thousandth of a meter (1/1000 m or 0.001 m).
The word itself comes from the Latin "mille," meaning "thousand."
This is why the prefix "milli" in the metric system always means one-thousandth of a base unit—just like a milligram is one-thousandth of a gram.
The plural form is millimeters.
Understanding the relationship between millimeters and inches is crucial, particularly for projects that utilize both metric and imperial systems.
The official mm-to-inch conversion is a precise measurement used worldwide in engineering and manufacturing.
The millimeter is the standard unit for measuring small distances with precision.
You likely encounter millimeter measurements more often than you think in daily life, science, and technology.
A micrometer (μm), commonly referred to as a micron, is a unit of length in the metric system.
It is extremely small, equal to one millionth of a meter (10-6 m).
The micrometer may be tiny, but it's indispensable wherever extreme precision is required. Here are some examples of how it's used across different industries:
Electronics manufacturing: Parts like transistors, traces, and other microchip features are measured in micrometers. Modern CPUs and memory chips depend on manufacturing at these microscopic scales.
Aerospace engineering: Components are machined to micrometer tolerances, ensuring they fit and perform reliably under extreme stress and temperature conditions.
Medical devices: Stents, catheters, and many surgical tools must be produced with micrometer-level accuracy to ensure patient safety and proper function.
Textiles: Fiber diameters—such as wool, silk, and synthetic fibers—are measured in micrometers to assess softness, strength, and the best uses for each material.
Small unit, significant impact: micrometer-level precision underpins quality, safety, and performance across many fields.
It can be hard to grasp just how small a micrometer is.
To put this micrometer size comparison into perspective, consider these examples:
These comparisons highlight the incredible microscopic scale the micrometer represents, far smaller than anything the naked eye can perceive.
Yes, they are the same.
The official name for this unit in the International System of Units (SI) is the micrometer; however, it is often still referred to by its older name, the micron.
The term "micron" was officially retired in 1967 to standardize terminology and prevent confusion. Nonetheless, it remains commonly used in various industries and scientific contexts due to habit.
Therefore, when you encounter a measurement in microns, it is equivalent to a micrometer (1×10-6 meters).
Here are some quick reference conversions from Millimeter (mm) to Micrometer (μm):
| Millimeters | Micrometers |
|---|---|
| 0.000001 mm | 0.001 μm |
| 0.001 mm | 1 μm |
| 0.1 mm | 100 μm |
| 1 mm | 1000 μm |
| 2 mm | 2000 μm |
| 3 mm | 3000 μm |
| 4 mm | 4000 μm |
| 5 mm | 5000 μm |
| 6 mm | 6000 μm |
| 7 mm | 7000 μm |
| 8 mm | 8000 μm |
| 9 mm | 9000 μm |
| 10 mm | 104 μm |
| 20 mm | 20000 μm |
| 30 mm | 30000 μm |
| 40 mm | 40000 μm |
| 50 mm | 50000 μm |
| 100 mm | 105 μm |
| 1000 mm | 106 μm |
| 10000 mm | 107 μm |
For all Length converters, choose units using the From/To dropdowns above.