Convert Inch to Micrometer

One in equals 25,400 µm. This converter allows you to easily convert between Inch and Micrometer in real time.

Formula

in × 25,400 = µm

Example: 1 in = 25,400 µm

What is Inch?

The inch is a unit of length in the imperial and US customary systems, defined as exactly 25.4 millimeters. The word comes from the Latin "uncia," meaning one-twelfth, as there are 12 inches in a foot. Screen sizes for televisions, monitors, and smartphones are universally measured diagonally in inches. In plumbing and hardware, pipe diameters and bolt sizes are often specified in inches, even in countries that otherwise use the metric system.

What is Micrometer?

The micrometer, formerly known as the micron, is one-millionth of a meter or one-thousandth of a millimeter. It is essential in biology for describing cell sizes—a red blood cell is about 7 µm in diameter, and typical bacteria measure around 1 to 5 µm. In semiconductor manufacturing, transistor gate lengths and circuit features are measured in micrometers or smaller. Optical fiber core diameters, thin-film coatings, and particle sizes in air-quality studies are also expressed in micrometers.