# Kilometers (km) to Micrometers (µm) Converter

This length unit converter dynamically calculates the value you enter in kilometers (km) and converts it to its equivalent value in micrometers (µm).

## How many kilometers (km) are in 1 micrometer (µm)? What is the formula for how to convert kilometers to micrometers (km to µm)?

1 kilometer (km) = 1,000,000,000 micrometers (µm)
So we can say that there is 1,000,000,000 micrometers in 1 kilometer.
This means that the multiplication conversion factor to convert a quantity expressed in a kilometer unit of measurement to an equivalent quantity expressed in a micrometer unit of measurement is 1,000,000,000.

Inversely (or reciprocally),

1 micrometer (µm) = 0.000000001 kilometer (km)
So we can say that there is 0.000000001 kilometer in 1 micrometer.
This means that the division conversion factor to convert a quantity expressed in a kilometer unit of measurement to an equivalent quantity expressed in a micrometer unit of measurement is 0.000000001.

Knowing this inverse mathematical relationship between the two conversion factors and their reciprocal operations, we can derive two formulas to calculate and convert a quantity of length expressed in kilometers to an equivalent quantity of length expressed in micrometers (km to µm). Both formulas will yield the same result. The formulas are:

`µm = km × 1,000,000,000    → This is the formula based on the multiplication conversion factor.`

and

`µm = km ÷ 0.000000001    → This is the formula based on the division conversion factor.`

For example, if you have a length of 1.5 kilometers that you want to convert to micrometers, you would use either of the two formulas as follows:

`µm = 1.5 km × 1,000,000,000 = 1,500,000,000 µm`
`µm = 1.5 km ÷ 0.000000001 = 1,500,000,000 µm`

So, the result is the same using either formula, which is 1,500,000,000 micrometers.

## Kilometers to micrometers (km to µm) conversion chart

To save you time and effort spent on having to perform manual calculations or look up conversion formulas every time a conversion from kilometers to micrometers is needed, here is a kilometers-to-micrometers conversion chart for your quick and easy reference. This conversion chart (or conversion table) shows common measurement values of length in kilometers and their equivalent measurement values in micrometers. These equivalent measurement values may be rounded off to 1 or 2 decimal places when it is mathematically expedient for everyday applications.

## Conversion factor of 1 kilometer to other units of length

Here is a reference list providing a conversion of 1 kilometer (km) to its equivalent values in various units of length, both metric and imperial:

• 1 kilometer (km) = 1,000,000,000,000 nanometers (nm)
• 1 kilometer (km) = 1,000,000,000 micrometers (µm)
• 1 kilometer (km) = 1,000,000 millimeters (mm)
• 1 kilometer (km) = 100,000 centimeters (cm)
• 1 kilometer (km) = 10,000 decimeters (dm)
• 1 kilometer (km) = 1,000 meters (m)
• 1 kilometer (km) = 39,370.078740157 inches (in)
• 1 kilometer (km) = 3,280.8398950131 feet (ft)
• 1 kilometer (km) = 1,093.6132983377 yards (yd)
• 1 kilometer (km) = 0.62137119223733 mile (mi)
• 1 kilometer (km) = 0.53995680345572 nautical mile (nmi)

## What is a kilometer (km)?

Definition of kilometer: A kilometer is a unit of length in the International System of Units (SI), commonly known as the metric system, equal to one thousand meters (10^3 m). It is commonly used for longer distances, such as races, road distances and geographical features.

The abbreviation for kilometer is km. The single Unicode character (U+339E) represents the 2-character Latin abbreviation for kilometer. The Windows Alt code for this character is Alt + 13214.

## What is a micrometer (µm)?

Definition of micrometer: A micrometer, also known as a micron, is a unit of length in the International System of Units (SI). It is equal to one millionth of a meter (10^-6 m). It is frequently used in scientific and industrial applications to measure very small distances such as cells, bacteria, and fine particles.

The term “micrometer” (µm) is the technically correct and preferred term according to the International System of Units (SI). But the term “micron” is more commonly used in everyday usage. The abbreviation for micrometer is μm. The single Unicode character (U+339B) represents the 2-character Greek/Latin abbreviation for micrometer. The Windows Alt code for this character is Alt + 13211.