Millimeter to Micrometer Converter

Millimeter

The millimeter (symbol: mm) is a unit of length in the metric system, equal to one thousandth of a meter. Meter, as you know, is the SI base unit of length. Therefore, there are one thousand millimeters in a meter. There are ten millimeters in a centimeter.

One millimeter is equal to 1000 micrometers or 1000000 nanometers. Since an inch is officially defined as exactly 25.4 millimeters, a millimeter is equal to exactly 5⁄127 (≈ 0.03937) of an inch.

The millimeter is often used in day-to-day life for measuring small lengths. For example, pressure is measured in millimeters of mercury (mmHg). A sheet of paper is typically between 0.07 mm and 0.18 mm thick, with ordinary printer paper or copy paper approximately 0.1 mm thick. More information

Micrometer

A micrometer (symbol: μm) is a unit for measuring length. One micrometer equals to one millionth of a meter i.e. 0.000001 m. One micrometer can be expressed in scientific notation as 1×10⁻⁶ m.

Micrometer is often used to express length at the atomic levels. The micrometer is a common unit of measurement for wavelengths of infrared radiation as well as sizes of biological cells and bacteria. The width of a single human hair ranges from approximately 20 to 200 μm. The longest human chromosome, chromosome 1, is approximately 10 μm in length.

Millimeters To Micrometers Table