Japanese ri = 3926.79936 length (length)
Try converting from "ri" to agate (typography agate), angstrom, barleycorn, bolt (of cloth), en (typography en), engineers chain, foot, football field, gradus (Roman gradus), inch, ken (Japanese ken), m (meter), mile, nautical league, nautical mile, naval shot, pace, parasang, Roman foot, spindle, or any combination of units which equate to "length" and represent depth, fl head, height, length, wavelength, or width.
ri = 2,164,377.6 agate (typography agate), 39,267,993,600,000 angstrom, 5,521.37 archin (Russian archin), 2.62E-08 astronomical unit, 195.2 chain (surveyors chain), 34,355.2 cloth finger, 22,345,652.96 en (typography en), 128.83 engineers chain, 11,780,398.08 French, 16,970.19 Greek span, 154,598.4 inch, 7,091.67 Israeli cubit, 6.09 li (Chinese li), 154,598,400 mil, 2.44 mile, .29822222 spindle, 21.26 stadium (Roman stadium), 12,883.17 survey foot, 4,686.22 vara (Mexican vara), 4,294.4 yard.
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