Physical constant
Proton mass
- m_p
- Measured
- atomic
Proton mass (m_p) is 1.67262192 × 10^-27 kg. Measured. About 1,836 times the electron mass. Values follow CODATA 2018 (2019 SI redefinition).
Value
Value1.67262192 × 10^-27 kg
Scientific notation1.67262192369 × 10^-27 kg
Unitkg
Symbolm_p
ExactnessExperimentally measuredMeasured. About 1,836 times the electron mass.
Reciprocal5.978637407 × 10^26
Order of magnitude10^-27
Multiples
× 23.34524385 × 10^-27
× 101.67262192 × 10^-26
× 1001.67262192 × 10^-25
× 1,0001.67262192 × 10^-24
× 0.58.36310962 × 10^-28
× 0.11.67262192 × 10^-28
Provenance
DatasetCODATA 2018 (2019 SI redefinition)
Categoryatomic
Why it mattersMeasured. About 1,836 times the electron mass.
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