femtometer to kilometer
Please provide values below to convert femtometer [fm] to kilometer [km], or change ↔.
femtometer [fm]
Definition: A femtometer is a unit of length equal to one-quadrillionth of a meter.
Historyandorigin: It is part of the metric system, introduced in the late 20th century.
CurrentUse: It is used in particle physics and atomic-scale measurements.
funfact: The prefix 'femto-' comes from the Danish word 'femten,' meaning 'fifteen.'
kilometer [km]
Definition: A kilometer is a unit of length equal to 1,000 meters.
Historyandorigin: Derived from the meter, the kilometer was introduced in the late 18th century as part of the metric system.
CurrentUse: It is commonly used to measure long distances, such as between cities.
funfact: The prefix 'kilo-' comes from the Greek word 'khilioi,' meaning 'thousand.'
femtometer [fm] to kilometer [km] Conversion Table
| 1 femtometer [fm] | 9.999999999E-19 kilometer [km] |
| 2 femtometer [fm] | 1.999999999E-18 kilometer [km] |
| 3 femtometer [fm] | 3.E-18 kilometer [km] |
| 5 femtometer [fm] | 4.999999999E-18 kilometer [km] |
| 10 femtometer [fm] | 9.999999999E-18 kilometer [km] |
| 50 femtometer [fm] | 5.E-17 kilometer [km] |
| 100 femtometer [fm] | 1.E-16 kilometer [km] |
| 1000 femtometer [fm] | 9.999999999E-16 kilometer [km] |
| 10000 femtometer [fm] | 9.999999999E-15 kilometer [km] |
| 100000 femtometer [fm] | 9.999999999E-14 kilometer [km] |
| 1000000 femtometer [fm] | 1.E-12 kilometer [km] |
How to Convert femtometer to kilometer
1 femtometer [fm] = 9.999999999E-19 kilometer [km]
1 kilometer [km] = 1000000000000000000 femtometer [fm]
we use cross multiplication method
femtometer [fm] → kilometer [km]
1 → 9.999999999E-19
1.5 → ?( suppose x)
=>1.5*9.999999999E-19=1*x
by simplifying
x=1.5E-18