The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
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joule-hartree relationship
 $ 1\,{\rm J} = [{\rm J}/(2\,hc\,R_\infty)] \, E_{\rm h} $
 Numerical value  2.293 712 278 3969 x 1017 Eh
 Standard uncertainty  0.000 000 000 0025 x 1017 Eh
  Relative standard uncertainty  1.1 x 10-12
 Concise form  2.293 712 278 3969(25) x 1017 Eh    
 
Click here for correlation coefficient of this constant with other constants
Source: 2022 CODATA     
recommended values 		 Definition of
uncertainty 		      Correlation coefficient with
any other constant

 

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