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Conversion from eV to J   Conversion equation:  1 eV = x J x = {e}    Value of conversion factor:  x = 1.602 176 634 x 10-19   Your input value:  2.150 000 000 000 00... x 108 eV   Your converted value:  3.444 679 763 100 00... x 10-11 J    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