Convert league to X-unit
Please provide values below to convert league [lea] to X-unit [X], or Convert X-unit to league.
How to Convert League to X-Unit
1 lea = 4.81801053808079e+16 X
Example: convert 15 lea to X:
15 lea = 15 × 4.81801053808079e+16 X = 7.22701580712119e+17 X
League to X-Unit Conversion Table
| league | X-unit |
|---|
League
A league is a unit of length that was common in Europe and Latin America, but is no longer an official unit in any nation. It was the distance a person could walk in an hour.
History/Origin
The league varied in length from country to country and even within the same country over time. The most common definition was three miles.
Current Use
The league is no longer in common use but is found in historical texts and literature.
X-Unit
An X-unit is a unit of length approximately equal to 1.002 x 10⁻¹³ meters.
History/Origin
The X-unit was proposed by the Swedish physicist Manne Siegbahn in 1919 for measuring the wavelengths of X-rays and gamma rays.
Current Use
The X-unit has been largely replaced by the angstrom and the picometer.