Convert X-unit to chain (US survey)
Please provide values below to convert X-unit [X] to chain (US survey) [ch (US)], or Convert chain (US survey) to X-unit.
How to Convert X-Unit to Chain (Us Survey)
1 X = 4.98129919191436e-15 ch (US)
Example: convert 15 X to ch (US):
15 X = 15 × 4.98129919191436e-15 ch (US) = 7.47194878787153e-14 ch (US)
X-Unit to Chain (Us Survey) Conversion Table
| X-unit | chain (US survey) |
|---|
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.
Chain (Us Survey)
A U.S. survey chain is a unit of length equal to 66 U.S. survey feet.
History/Origin
The U.S. survey chain is based on the U.S. survey foot, which was slightly different from the international foot. The use of survey units was officially phased out in 2022.
Current Use
The U.S. survey chain was used for land surveying in the United States.