Mu (Chinese) to Square Kilometers (mu to km²)
1 mu (Chinese) equals 0.0006666666667 square kilometers (rounded).
How to convert mu (Chinese) to square kilometers
To convert mu (Chinese) to square kilometers, multiply the number of mu (Chinese) by 0.0006666666667. The factor is rounded to 10 significant digits. To go the other way, multiply square kilometers by 1,500.
square kilometers = mu (Chinese) × 0.0006666666667
Example: 10 mu (Chinese) = 0.006666666667 square kilometers.
About these units
Mu (Chinese) (mu)
Exactly 10,000/15 m² (666.67 m²), one fifteenth of a hectare. The standard unit of farmland in China.
A mu was once a plot defined by a square count of bu, the double pace used as a surveying step. Han-era writers recalled that in earlier times 100 square bu made a mu, while in their own day 240 were needed, and calculations from Han rulers give a mu of roughly 461 m². The size kept shifting. The 1915 Beiyang government law defined it as 60 square zhang, about 614.4 m².
The Republic's 1930 market system settled on 1/15 of a hectare, which is the 666.67 m² used here, and the mu is the only traditional Chinese area unit that survived the 1959 State Council decree. Farmland statistics in China are still given in mu, so that 15 mu make one hectare and 1,500 mu a square kilometre. Hong Kong and Macau use a mou of about 761.4 m², while Taiwan and Japan use a unit of about 99.17 m². The idiom of one mu and three fen of land describes a person's small personal patch.
1 mu (Chinese) = 666.6666667 square meters (approximately).
Sources: Wikipedia: Mu (unit); Wikipedia: Chinese units of measurement
Square Kilometer (km²)
One million square meters (100 hectares). Used for the area of cities, countries and lakes.
Metric land measure took a surprisingly long time to settle on the kilometer. The meter was defined in 1799, yet people initially preferred the myriameter, 10,000 meters, and the French phrase myriamètres par heure was still in print in 1802. The Netherlands adopted the kilometer in 1817 under the name mijl. Once the kilometer was established, the square kilometer followed naturally as the unit for areas too large to count comfortably in hectares or square meters.
One square kilometer is 1,000,000 square meters, or 100 hectares, about 0.3861 square miles or 247.1 acres. A useful picture comes from history: many medieval European cities were enclosed by walls around roughly a square kilometer, with Delft at about 0.9 km² and Lucca at about 1.09 km². A standard 18-hole golf course of 6,000 meters needs about 0.8 km². The symbol km² means the square of a kilometer, not a thousand square meters. The planned Square Kilometre Array radio telescope takes its name from the collecting area it aims for.
1 square kilometer = 1,000,000 square meters (exactly).
Sources: Wikipedia: Square kilometre; Wikipedia: Kilometres per hour
Related conversions
- Square kilometers to mu (Chinese) (reverse)
- Mu (Chinese) to square meters
- Mu (Chinese) to hectares
- Mu (Chinese) to square inches
- Mu (Chinese) to square feet
- Mu (Chinese) to square yards
- Mu (Chinese) to acres
- Mu (Chinese) to square miles
- Square meters to square kilometers
- Hectares to square kilometers
- Square inches to square kilometers
- Square feet to square kilometers
- Square yards to square kilometers
- Acres to square kilometers
- Square miles to square kilometers
- Square centimeters to square kilometers
- Square millimeters to square kilometers
- Tsubo to square kilometers
- Pyeong to square kilometers
- Rai (Thai) to square kilometers
See all area units.