Constants Topics: Values Energy Equivalents Searchable Bibliography Background Constants Bibliography Constants, Units & Uncertainty home page

Click symbol for equation electron mass energy equivalent in MeV  Value  0.510 998 910 MeV  Standard uncertainty  0.000 000 013 MeV   Relative standard uncertainty   2.5 x 10-8  Concise form  0.510 998 910(13) MeV       Click here for correlation coefficient of this constant with other constants Source: 2006 CODATA      recommended values  Definition of uncertainty       Correlation coefficient with any other constant