Jō (written 畳) is a Japanese unit of area. Conversion conventions in place since 1891 state that 1 Jō is equivalent to 200/121 meters2 equating to 1.653m2. In terms of Japanese measurements, 1 Jō is equivalent to 1/2 of a Tsubo. It is also the measurement for a single tatami mat and is used as a measurement of floorspace.
- Japanese Area - Shaku(勺), Go(合), Jo(畳), Tsubo(坪), Bu(歩), Se(畝), Tan (段 or 反), and Chō or Chōbu (町 and 町歩).
- Japanese Lengths - Mō (毛 or 毫), Rin (厘), Bu (分), Sun (寸), Shaku (尺), Ken (間), Hiro (?), Jō (丈), Chō (町), and Ri (里).
- Japanese Volume (Dry and Liquid) - Sai (才), Shaku (勺), Gō (合), Shō (升), To (斗), and Koku (石).
- Japanese Weight and Mass - Mō (毛 or 毫), Rin (厘), Bu (分), Monme or Momme (匁), Ryō (両), Hyakume (百目), Kin (斤), Kan or Kanme (貫 and 貫目), Maru (丸), and Tan (担 or 擔).
- Japanese Rice Weights - Shaku (勺), Gō (合), Shō (升), To (斗), Hyō (俵), and Koku (石).
Japanese Units and Metric Equivalences |
Japanese Area Units
- Shaku (勺) = 330.6cm2
- Gō (合) = 0.3306m2
- Jō (畳) = 1.653m2
- Tsubo (坪) or Bu (歩) =3.306m2
- Se (畝) = 99.17m2
- Tan (段 or 反) = 991.7m2
- Chō or Chōbu (町 and 町歩) = 9917m2
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Japanese Length Units
- Mō (毛 or 毫) = 0.03030mm
- Rin (厘) = 0.3030mm
- Bu (分) = 3.030mm
- Sun (寸) = 3.030cm
- Shaku (尺) = 30.30cm
- Ken (間) = 1.818m
- Jō (丈) = 3.030m
- Chō (町) = 109.09m
- Ri (里) = 3.927km
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Japanese Volume Units
- Sai (才) = 1.804mL
- Shaku (勺) = 18.04mL
- Gō (合) = 180.4mL
- Shō (升) = 1.804L
- To (斗) = 18.04L
- Koku (石) = 180.4L
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Japanese Weight and Mass Units
- Mō (毛 or 毫) = 3.75mg
- Rin (厘) = 37.5mg
- Bu (分) = 375mg
- Monme or Momme (匁) = 3.75g
- Ryō (両) = 37.5g
- Hyakume (百目) = 375g
- Kin (斤) = 600g
- Kan or Kanme (貫 and 貫目) = 3.75kg
- Maru (丸) = 30kg
- Tan (担 or 擔) = 60kg
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Japanese Rice Measurements
- Shaku (勺) = 15g
- Gō (合) = 150g
- Shō (升) = 1.5kg
- To (斗) = 15kg
- Hyō (俵) = 60kg
- Koku (石) = 150kg
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Japanese Currency
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