Japanese ri = 3926.79936 meter (length)
Try converting from "ri" to astronomical unit, Biblical cubit, gradus (Roman gradus), Greek fathom, Greek span, league, light yr (light year), line, micron, nail (cloth nail), naval shot, parsec, point (typography point), rod (surveyors rod), Roman cubit, Roman foot, shaku (Japanese shaku), spindle, survey foot, verst (Russian verst), or any combination of units which equate to "length" and represent depth, fl head, height, length, wavelength, or width.
ri = 5,521.37 archin (Russian archin), .08866279 arpentcan, 195.2 chain (surveyors chain), 17,177.6 cloth quarter, .00001022 earth to moon (mean distance earth to moon), 3,435.52 ell, 3.93E+18 fermi, 176,683.89 finger, 5,301.73 gradus (Roman gradus), 2,121.27 Greek fathom, 6.09 li (Chinese li), 19,520 link (surveyors link), 2.44 mile, 5,153.28 pace, .69714286 parasang, 11,172,826.48 point (typography point), 780.8 rod (surveyors rod), 42.94 soccer field, 2.44 UK mile (British mile), 3.68 verst (Russian verst).
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