CODATA Value: proton charge to mass quotient

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proton charge to mass quotient
$e/m_{\rm p}$

Numerical value 9.578 833 1560 x 10⁷ C kg^-1

Standard uncertainty 0.000 000 0029 x 10⁷ C kg^-1

  Relative standard uncertainty 3.1 x 10^-10

Concise form 9.578 833 1560(29) x 10⁷ C kg^-1

Click here for correlation coefficient of this constant with other constants

Source: 2018 CODATA
recommended values Definition of
uncertainty      Correlation coefficient with
any other constant