The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
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Planck temperature
 $T_{\rm p} = m_{\rm p}c^2/k = (\hbar c^5/G)^{1/2}/k$
 Numerical value  1.416 784 x 1032 K
 Standard uncertainty  0.000 016 x 1032 K
  Relative standard uncertainty  1.1 x 10-5
 Concise form  1.416 784(16) x 1032 K    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values
 
Definition of
uncertainty
 
     Correlation coefficient with
any other constant

 
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