Japanese ri = 3926.79936 meter (length)
Try converting from "ri" to angstrom, arpentcan, city block (informal), digitus (Roman digitus), finger, furlong (surveyors furlong), gradus (Roman gradus), Greek palm, Greek span, ken (Japanese ken), league, mil, parasang, parsec, rod (surveyors rod), Roman foot, rope, sazhen (Russian sazhen), span (cloth span), stadia (Greek stadia), 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), 2.62E-08 astronomical unit, 107.36 bolt (of cloth), 6,183,936 bottom measure, 17.89 cable length, 15,459,840 caliber (gun barrel caliber), 42.94 city block (informal), 3,435.52 ell, 128.83 engineers chain, 2,147.2 fathom, 8,485.09 Greek cubit, 1,853.7 ken (Japanese ken), 6.09 li (Chinese li), .09306317 marathon, 2.44 mile, .70676734 nautical league, 11,172,826.48 point (typography point), 42.94 soccer field, .29822222 spindle, 4,686.22 vara (Mexican vara).
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