Roman obolus = 0.0005682864407 mass (mass)
Try converting from "Roman obolus" to AMU (atomic mass unit), arroba (Mexican arroba), bes (Roman bes), carat troy (troy carat), cental (British cental), cotton bale (US), dram (avoirdupois dram), dram troy (troy dram), earth mass, electron mass (electron rest mass), kin (Japanese kin), livre (French livre), long quarter, mite (English mite), pennyweight troy (troy pennyweight), picul (Chinese picul), pound, pound ap (apothecary pound), pound troy (troy pound), uncia (Roman uncia), or any combination of units which equate to "mass" and represent mass.
Roman obolus = .00174008 as (Roman as), .01948388 assay ton, .00001333 bag, 2.84 carat troy (troy carat), .14616667 dram troy (troy dram), 6.24E+26 electron mass (electron rest mass), .05794909 hyl, .00094698 kin (Japanese kin), .00015149 kwan (Japanese kwan), 5.68E-07 metric ton, .00132395 mina (Greek mina), 175.4 mite (English mite), 3.40E+23 proton mass (proton rest mass), .00000568 quintal, .00001392 Roman talent, .00005011 short quarter, .00003894 slug, .00008949 stone, .00002207 talent (Greek talent), .02088095 uncia (Roman uncia).
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