The NIST Reference on Constants, Units and Uncertainty Information at the foundation of modern science and technology from the Physical Measurement Laboratory of NIST

CODATA Internationally recommended values of the
Fundamental Physical Constants

Constants
Topics:
Values
Energy
Equivalents
Searchable
Bibliography
Background

Constants
Bibliography

Constants,
Units &
Uncertainty
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Conversion factors for energy equivalents

  For your convenience, you may convert energies online below.
 
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Convert: x 10^
e.g,  12.345  or  12.345(67)
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See also

     Values of the constants
     Searchable bibliography on the constants
     Background information related to the constants

 

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