How to convert micrometers to inches
To convert a measurement in micrometers to inches, multiply the value by 0.0000393701. The conversion factor comes from the relationship between both units and the meter (the SI base unit of length).
For example, to convert 5 µm to inches: 5 × 0.0000393701 = 0.0001968504 in.
What is a micrometer?
A micrometer (micron) is a metric unit of length equal to one millionth of a meter (0.000001 m) or one thousandth of a millimeter. The term 'micron' was officially revoked as an SI unit name in 1967 in favor of 'micrometer', though 'micron' remains common in industry. The unit became critical with the development of microscopy.
Common uses of micrometers include: Semiconductor chip fabrication (process nodes); Bacteria and cell biology measurements; Surface roughness in manufacturing; Fiber optic cable diameter specifications.
What is a inch?
An inch is an imperial unit of length equal to 1/12 of a foot or exactly 25.4 millimeters. Originally defined as the width of a man's thumb, later standardized as three barleycorns laid end to end. Since 1959, defined internationally as exactly 25.4 mm.
Common uses of inches include: Screen and display sizes (TV, phone, monitor diagonals); Screw, bolt, and pipe sizing; Tire rim diameter specifications; Woodworking and carpentry precision.
When you need to convert micrometers to inches
Converting micrometers to inches is common when working with international specifications, importing products from metric countries, or comparing measurements across systems. Many technical fields require fluency in both measurement systems.
Micrometers to inches worked examples
Here are some common values converted:
1 µm = 0.0000393701 in 5 µm = 0.0001968504 in 10 µm = 0.0003937008 in 50 µm = 0.0019685039 in 100 µm = 0.0039370079 in
Frequently asked questions
How many inches are in one micrometer?
One micrometer (µm) equals 0.0000393701 inches (in). Multiply any value in micrometers by 0.0000393701 to convert to inches.
How do I convert micrometers to inches?
Multiply the value in micrometers by 0.0000393701. For example, 5 µm × 0.0000393701 = 0.0001968504 in.
How do I convert inches to micrometers?
Multiply the value in inches by 25,400, or divide by 0.0000393701. Use the swap button on the converter above to reverse the direction.
Is the micrometer to inch conversion exact?
Yes, the conversion is exact. Since 1959, one inch is defined as exactly 25.4 mm (the international yard and pound agreement), so all metric-imperial length conversions use exact factors.
What is the formula for micrometers to inches?
The formula is: in = µm × 0.0000393701. This is derived from the definition of both units relative to the meter (the SI base unit of length).