The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
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Constants,
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Uncertainty
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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.
 
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

 
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