Tsubo
A tsubo is a traditional Japanese unit of area equal to the area of a square with sides of one ken, which is roughly 3.3057 square meters or two standard tatami mats. Formally standardized during the Meiji period under the Shakukan-hō system of weights and measures, the tsubo remains widely used in modern Japanese real estate and construction to specify building footprints and residential property sizes, despite official administrative adoption of the metric square meter in 1966.
Metric
- Square kilometre (km²)3.31×10⁻⁶
- Hectare (ha)3.31×10⁻⁴
- Are (a)0.03
- Square metre (m²)3.31
- Square decimetre (dm²)330.58
- Square centimetre (cm²)33,057.86
- Square millimetre (mm²)3,305,786.22
- Square micrometre (µm²)3.31×10¹²
- Square nanometre (nm²)3.31×10¹⁸
British/American
- Township3.55×10⁻⁸
- Square mile1.28×10⁻⁶
- Homestead5.11×10⁻⁶
- Acre8.17×10⁻⁴
- Rood3.27×10⁻³
- Square rod0.13
- Square0.36
- Square yard (yr²)3.95
- Square foot (ft²)35.58
- Square inch (in²)5,123.98
Other
- Metric dunam3.31×10⁻³
- Cypriot dunam2.47×10⁻³
- Iraqi dunam1.32×10⁻³
- Football pitch4.63×10⁻⁴
Brazilian
- Alqueire paulista1.37×10⁻⁴
- Alqueire mineiro6.83×10⁻⁵
- Alqueire baiano3.41×10⁻⁵
- Alqueire do norte1.22×10⁻⁴