Constants Topics: Values Energy Equivalents Searchable Bibliography Background Constants Bibliography Constants, Units & Uncertainty home page	Correlation coefficient between two constants Boltzmann constant  Value  1.380 6504 x 10-23 J K-1  Standard uncertainty  0.000 0024 x 10-23 J K-1   Relative standard uncertainty   1.7 x 10-6  Concise form  1.380 6504(24) x 10-23 J K-1       Source: 2006 CODATA      recommended values  Definition of uncertainty        Correlation coefficient with any other constant
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