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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hartree-inverse meter relationship
 $(1 \ E_{\rm h})/hc$
 Value  2.194 746 313 702 x 107 m-1
 Standard uncertainty  0.000 000 000 013 x 107 m-1
  Relative standard uncertainty   5.9 x 10-12
 Concise form  2.194 746 313 702(13) x 107 m-1    
 
Click here for correlation coefficient of this constant with other constants
Source: 2014 CODATA     
recommended values
 
Definition of
uncertainty
 
     Correlation coefficient with
any other constant

 
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