Constants
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Factor
x
for relating u to eV
(1 u)
c
2
=
x
eV
x
= {
m
u
c
2
/
e
}
Value of
x
9.314 941 0242 x 10
8
Standard uncertainty of
x
0.000 000 0028 x 10
8
Concise form:
x
=
9.314 941 0242(28) x 10
8
Note:
{
Q
}
is the numerical value of
Q
when
Q
is expressed in SI units
Source: 2018 CODATA
recommended values
Definition of
uncertainty
Basis of conversion factors
for energy equivalents
