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jō [Japanese]

1

丈 In Japan, ? – 20ᵗʰ century¹, a unit of length, = 10 shaku, approximately 3.0303… (that is, ¹⁰⁰⁄₃₃) meters (about 3.314 yards).

1. United Nations, 1966

2

畳 In Japan, a unit of area used to describe the size of rooms, in principle = ½ tsubo and = the standard size of a tatami mat. In practice the jō varies with locality and, nowadays, even with the type of dwelling.