Convert ångström to femtometers

Explanation

From this page you can convert ångström to femtometers (or Å to fm) simply, by using the application above.

In case you are wondering, to convert from ångström to femtometers you need to multiply by 100000. This factor is calculated using the respective definitions of the two units you can find below.

Formula

1 Å=100000 fm

ångströmÅ

dimension	length
symbol	Å
search alias	a

The ångström (Å) is a unit of length. It is a metric unit but not part of the International System of Units.

The unit is used in chemistry and crystallography for measurements at the microscopic scale, e.g. the size of molecules, atoms, the space between atoms, etc.

Definition of the ångström

One ångström is equal to 0.0000000001 meters (10^-10 m).

Equivalences

One ångström is equivalent to:

femtometersfm

dimension	length
system	International system of units (SI)
symbol	fm
synonyms	fermi

The femtometer (fm) is a unit of length in the International System of Units.

In ascending order, the femtometer comes after the attometer and before the picometer.

Definition of the femtometer

One femtometer is equal to 0.000000000000001 meters.

Equivalences

One femtometer is equivalent to:

0.001 picometers

Some Facts

With the femtometer we've gone subatomic.

Atomic nuclei measure (very roughly) 1 to 10 femtometers. They are tens of thousands of times smaller than whole atoms but concentrate most of their mass.

But nuclei are not indivisible. They are made of protons and neutrons (the simplest nucleus being the hydrogen nucleus with only one proton), themselves consisting of even smaller particles, the quarks.

Prefix

femto

10^-15

The prefix femto- comes from the Danish for 15. The associated multiplicative factor is 0.000 000 000 000 001 or 10^-15.

Metric length units

femtometer	fm	0.000 000 000 000 001
picometer	pm	0.000 000 000 001
nanometer	nm	0.000 000 001
micrometer	µm	0.000 001
millimeter	mm	0.001
centimeter	cm	0.01
decimeter	dm	0.1
meter	m	1
dekameter	dam	10
hectometer	hm	100
kilometer	km	1000
megameter	Mm	1 000 000
gigameter	Gm	1 000 000 000
terameter	Tm	1 000 000 000 000
petameter	Pm	1 000 000 000 000 000
exameter	Em	1 000 000 000 000 000 000

The International System of Units

The International System of Units or SI (from the French Système international (d'unité)), also called metric system in the U.S., is a coherent system of units that was published 1960. It is official in nearly every country.

The General Conference on Weights and Measures (Conférence générale des poids et mesures) is tasked with overseeing the SI.