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]
Correlation coefficient between two constants
inverse meter-electron volt relationship†
 $(1 \ {\rm m}^{-1})hc$
 Numerical value  1.239 841 984...  x 10-6 eV
 Standard uncertainty  (exact)
  Relative standard uncertainty  (exact)
 Concise form  1.239 841 984... x 10-6 eV    
†The full description of unit m-1 is cycles or periods per meter.
 
Source: 2018 CODATA     
recommended values 		 Definition of
uncertainty 		       Correlation coefficient with
any other constant

 
Go to New Search
 
Select the second constant in the pair
 
  (e.g, electron mass, misspellings okay)
    Search by name
 
 
Or  browse the complete constants list   
 
Click here to re-select the first constant