Chō (area) to Hectares (chō to ha)
1 chō (area) equals 0.9917355372 hectares (rounded).
How to convert chō (area) to hectares
To convert chō (area) to hectares, multiply the number of chō (area) by 0.9917355372. The factor is rounded to 10 significant digits. To go the other way, multiply hectares by 1.008333333 (rounded).
hectares = chō (area) × 0.9917355372
Example: 10 chō (area) = 9.917355372 hectares.
About these units
Chō (area) (chō)
3,000 tsubo, about 9,917 m² (roughly one hectare; 2.45 acres). Used for farmland in Japan.
Almost exactly a hectare, the cho is the largest of the everyday Japanese land units. It is 3,000 tsubo, or 1,200,000/121 square metres, about 9,917, which is 0.9917 hectare or roughly 2.45 acres. It is also 100 se or 10 tan, and when no fractional part follows it is often written cho-bu.
Because it is so near a hectare, it is a convenient mental bridge for anyone moving between traditional and metric figures. In Japan it has been used for farmland, and it sits at the top of the tsubo, se and tan ladder.
The name is shared with a unit of length, so the area sense needs to be stated. The area figure used here follows from the 10/33 metre shaku fixed by the 1891 Meiji law, and the 1951 Measurements Law took the traditional units out of official use from 1959.
1 chō (area) = 9,917.355372 square meters (approximately).
Sources: Wikipedia: Japanese units of measurement; Wikipedia: Shaku (unit); Wikipedia: Tsubo
Hectare (ha)
10,000 square meters (2.471 acres). The standard unit for land and agricultural areas outside the US.
Hecto plus are: the name was coined in French, and are itself comes from the Latin area, meaning an open space. The French law of 18 Germinal, Year III (7 April 1795) defined the are as 100 square meters, and the hectare followed as 100 ares, or 10,000 square meters. The unit is therefore a product of the original French metric reforms rather than of later SI work, which is one reason its official status has always been slightly awkward.
When the SI was set up in 1960 the are was not recognized, and the hectare was classed as a non-SI unit accepted for use with it. In practice it is the standard unit for land ownership, planning and agriculture in the European Union, the United Kingdom, Canada, Australia, New Zealand and South Africa, while the United States and Myanmar stay with the acre. A hectare is a square 100 meters on each side, about the size of Trafalgar Square, and equals roughly 2.47 acres. One hundred of them make a square kilometer.
1 hectare = 10,000 square meters (exactly).
Sources: Wikipedia: Hectare; Wikipedia: Are (unit); NIST Guide to the SI, Appendix B.8: conversion factors
Related conversions
- Hectares to chō (area) (reverse)
- Chō (area) to square meters
- Chō (area) to square kilometers
- Chō (area) to square inches
- Chō (area) to square feet
- Chō (area) to square yards
- Chō (area) to acres
- Chō (area) to square miles
- Square meters to hectares
- Square kilometers to hectares
- Square inches to hectares
- Square feet to hectares
- Square yards to hectares
- Acres to hectares
- Square miles to hectares
- Square centimeters to hectares
- Square millimeters to hectares
- Tsubo to hectares
- Pyeong to hectares
- Rai (Thai) to hectares
See all area units.