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]
hartree-kilogram relationship
 $(1 \ E_{\rm h})/c^2$
 Value  4.850 870 129 x 10-35 kg
 Standard uncertainty  0.000 000 060 x 10-35 kg
  Relative standard uncertainty   1.2 x 10-8
 Concise form  4.850 870 129(60) x 10-35 kg    
 
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

 
Go to a new search