Select a category and enter your values below
To convert from Kilometer (km) to Micrometer (μm), use the following formula:
Let's convert 5 Kilometer (km) to Micrometer (μm).
Using the formula:
Therefore, 5 Kilometer (km) is equal to Micrometer (μm).
Here are some quick reference conversions from Kilometer (km) to Micrometer (μm):
| Kilometers | Micrometers |
|---|---|
| 0.000001 km | μm |
| 0.001 km | μm |
| 0.1 km | μm |
| 1 km | μm |
| 2 km | μm |
| 3 km | μm |
| 4 km | μm |
| 5 km | μm |
| 6 km | μm |
| 7 km | μm |
| 8 km | μm |
| 9 km | μm |
| 10 km | μm |
| 20 km | μm |
| 30 km | μm |
| 40 km | μm |
| 50 km | μm |
| 100 km | μm |
| 1000 km | μm |
| 10000 km | μm |
For all Length converters, choose units using the From/To dropdowns above.
A kilometer (km) is a unit of length in the metric system, equal to 1,000 meters.
The plural form is kilometers.
The term "kilometer" is composed of two parts: the metric unit "meter" and the Greek prefix "kilo," which comes from the word "khilioi," meaning "thousand."
Thus, a kilometer translates to one thousand meters.
This concept is a fundamental aspect of the decimal-based metric system, established in France during the 1790s. The logical, prefix-based nature of the metric system simplifies conversions, which is a key reason for its widespread adoption.
The kilometer is the official unit of measurement for geographical distance in the vast majority of countries worldwide.
Only a few nations still primarily use the mile for road signage and navigation, most notably:
For international travel, science, and sporting events like marathons and the Olympics, the kilometer is the universally accepted standard.
To understand how far a kilometer is, consider these real-world examples:
This consistent unit of measurement makes it easy to compare everything from everyday travel to distances in space.
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).