The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
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Click symbol for equation
Rydberg constant†
 $R_\infty$
 Numerical value  10 973 731.568 157 m-1
 Standard uncertainty           0.000 012 m-1
  Relative standard uncertainty  1.1 x 10-12
 Concise form  10 973 731.568 157(12) m-1    
†The full description of unit m-1 is cycles or periods per meter.
 
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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