proton rest mass = 1.672614E-27 kilogram
Try converting from "proton mass" to AMU (atomic mass unit), assay ton, bag, bowling ball, carat troy (troy carat), cotton bale Egypt, drachma2 (Greek drachma), electron mass (electron rest mass), funt (Russian funt), kg (kilogram), oz ap (apothecary ounce), pennyweight troy (troy pennyweight), pfund (German pfund), pound ap (apothecary pound), pound troy (troy pound), Roman obolus, scruple (apothecary scruple), short quarter, short ton, uncia (Roman uncia), or any combination of units which equate to "mass" and represent mass.
proton mass = 1.01 AMU (atomic mass unit), 1.40E-28 arroba (Mexican arroba), 5.12E-27 as (Roman as), 2.30E-28 bowling ball, 7.37E-30 cotton bale (US), 2.80E-52 earth mass, 1,836.11 electron mass (electron rest mass), 8.16E-24 English carat, 2.58E-23 grain (avoirdupois grain), 1.71E-25 hyl, 3.29E-29 long hundredweight (avoirdupois long hundredweight), .99862322 neutron mass (neutron rest mass), 5.90E-26 oz (ounce), 5.38E-26 oz troy (troy ounce), 4.48E-27 pound troy (troy pound), 2.94E-24 Roman obolus, 1.47E-24 scrupulum (Roman scrupulum), 2.63E-28 stone, 4.42E-26 tael (Chinese tael), 6.49E-29 talent (Greek talent).
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