hectare
haarea · International · Modern
Non-SI unit accepted for use with the SI; 1 ha = 10⁴ m².
Converter
area · China / East Asia · Historical–modern
tsubo
exact
- Record
- M238
- Definition quality
- Standardized historical Japanese shakkan reference
- Conversion mode
- multiplicative
- Calculator
- Fully calculable
Definition
Former Japanese law defines bu/tsubo as 400/121 square metres; NDL gives approx. 3.31 m².
Reference value
One tsubo is exactly 3.3057851239669422 square metres.
History & use
The former Japanese law defined tsubo/bu as 400/121 m²; NDL gives about 3.31 m².
Modern use
Modern use is context-dependent and varies by region or measurement system.
Did you know?
Tsubo remains culturally recognizable in Japanese property/floor-area contexts.
Sources & evidence
Source tier Tier B/C — recorded secondary/reference source · confidence High
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