apothecary grain = 0.00006479891 kilogram
Try converting from "ap gr" to as (Roman as), Babylonian shekel, cental (British cental), cotton bale Egypt, doppelzentner, funt (Russian funt), kwan (Japanese kwan), livre (French livre), long quarter, Mexican libra, oz ap (apothecary ounce), picul (Chinese picul), pood (Russian pood), pound, pound ap (apothecary pound), pound troy (troy pound), proton mass (proton rest mass), Roman obolus, Spanish quintal, uncia (Roman uncia), or any combination of units which equate to "mass" and represent mass.
ap gr = .00774181 Babylonian shekel, .00000152 bag, 1.90E-07 cotton bale Egypt, 7.11E+25 electron mass (electron rest mass), .09057971 Greek obolos, .00010798 kin (Japanese kin), .00001727 kwan (Japanese kwan), .00000128 long hundredweight (avoirdupois long hundredweight), 6.38E-08 long ton (avoirdupois long ton), 20 mite (English mite), 3.87E+22 neutron mass (neutron rest mass), .08928571 obol (Greek obol), .00208333 oz ap (apothecary ounce), .0001296 pfund (German pfund), .00000396 pood (Russian pood), .05704507 scrupulum (Roman scrupulum), 7.14E-08 short ton, .00000141 Spanish quintal, .00171429 tael (Chinese tael), .00000252 talent (Greek talent).
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