The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
Topics:
Values
Energy
Equivalents
Searchable
Bibliography
Background

Constants
Bibliography

Constants,
Units &
Uncertainty
home page
[skip navigation]
Click equation to show only symbol
Josephson constant
 $  K_{\rm J} = 2e/h$
 Numerical value  483 597.848 4...  x 109 Hz V-1
 Standard uncertainty  (exact)
  Relative standard uncertainty  (exact)
 Concise form  483 597.848 4... x 109 Hz V-1    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values
 
Definition of
uncertainty
 
     Correlation coefficient with
any other constant

 
Go to a new search