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 symbol for equation
natural unit of action in eV s
 $\hbar$
 Numerical value  6.582 119 569...  x 10-16 eV s
 Standard uncertainty  (exact)
  Relative standard uncertainty  (exact)
 Concise form  6.582 119 569... x 10-16 eV s    
 
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