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Conversion from J to Eh   Conversion equation:  1 J = x Eh x = 1 /{2Rhc}    Value of conversion factor:  x = 2.293 712 278 3969(25) x 1017   Your input value:  1.380 650 400 000 00... x 10-23 J   Your converted value:  3.166 814 774 6536(35) x 10-6 Eh    Note: {Q} is the numerical value of Q when Q is expressed in SI units   Source: 2022 CODATA      recommended values  Definition of uncertainty       Basis of conversion factors for energy equivalents