Japanese ri = 3926.79936 meter
Try converting from "ri" to astronomical unit, barleycorn, Biblical cubit, bottom measure, fathom, foot, football field, furlong (surveyors furlong), Greek fathom, Greek palm, Israeli cubit, m (meter), marathon, micron, palm, parasang, rod (surveyors rod), Roman mile, stadium (Roman stadium), yard, 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), 67.16 arpentlin, 463,795.2 barleycorn, 15,459,840 caliber (gun barrel caliber), 195.2 chain (surveyors chain), 34,355.2 cloth finger, 17,177.6 cloth quarter, 3.93E+18 fermi, 12,883.2 foot, 50,910.56 Greek palm, 4.15E-13 light yr (light year), 3,926,799,360 micron, 154,598,400 mil, 68,710.4 nail (cloth nail), 143.15 naval shot, 5,153.28 pace, .69714286 parasang, 780.8 rod (surveyors rod), 1,867.13 sazhen (Russian sazhen), 17,177.6 span (cloth span).
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