Fermi conversions

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The fermi conversion selector above selects the length/distance measurement unit to convert to starting from fermi (fm). To make a conversion starting from a unit of length other than fermi, simply click on the "Reset" button.

What is fermi?

The fermi (also femtometer) is a unit of length in the metric system equal to 10-15 meters (1 fm = 10-15 m). It is also equal to 10-6 nanometers (nm), or 10-9 micrometers (μm), or 10-12 millimeters (mm) or 10-13 centimeters (cm).

The fermi unit is named after the Italian physicist Enrico Fermi who lived between 1901 and 1954. One fermi is equal to one femtometer. The fermi measurement unit is used in nuclear physics.

Symbol:

fm

Plural:

fermi

Also called:

femtometre (plural: femtometres), femtometer (plural: femtometers, US spelling)