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≈ 404.6873 m 2: square foot: sq ft ≡ 1 ft × 1 ft: ≡ 9.290 304 × 10 −2 m 2: square foot (US Survey) sq ft ≡ 1 ft (US) × 1 ft (US) ≈ 9.290 341 161 3275 × 10 −2 m 2: square inch: sq in ≡ 1 in × 1 in: ≡ 6.4516 × 10 −4 m 2: square kilometre: km 2: ≡ 1 km × 1 km = 10 6 m 2: square link (Gunter's)(International) sq lnk ≡ ...
The unit is still in use in many areas previously ruled by the Ottomans, although the new or metric dunam has been redefined (as of when, by who?) as exactly one decare (1,000 square metres [10,760 square feet]), which is 1/10 hectare (1/10 × 10,000 square metres [107,640 square feet]), like the modern Greek royal stremma.
The base unit of Korean area is the pyeong, [29] equivalent to a square kan or 36 square Korean feet. It comprised about 3.158 m 2 during Korea's Three Kingdoms Era ; [ 7 ] the present value derives from the units established by the Japanese. [ 7 ]
A pyeong (abbreviation py) is a Korean unit of area and floorspace, equal to a square kan or 36 square Korean feet. The ping and tsubo are its equivalent Taiwanese and Japanese units, similarly based on a square bu or ken, equivalent to 36 square Chinese or Japanese feet. [1] [2]
List of orders of magnitude for areas 10 15 to 10 26 square metres. Factor (m 2) Multiple Value Item 10 15: 1 peta square meter P(m 2) 1,000 Mm 2: Surface area of the white dwarf, Van Maanen's star: 7,600 Mm 2: Surface area of Neptune [91] 10 16 43,000 Mm 2: Surface area of Saturn [92] 61 000 Mm 2
Comparison of 1 square foot with some Imperial and metric units of area. The square foot (pl. square feet; abbreviated sq ft, sf, or ft 2; also denoted by ' 2 and ⏍) is an imperial unit and U.S. customary unit (non-SI, non-metric) of area, used mainly in the United States, Canada, the United Kingdom, Bangladesh, India, Nepal, Pakistan, Ghana, Liberia, Malaysia, Myanmar, Singapore and Hong Kong.
The imperial nautical mile of 6080 feet (1853.19 m) was also formerly used by the Japanese in maritime contexts as a "marine ri". [14] A fourth and shorter ri of about 600 m is still evident in some beach names. The "99-Ri" beach at Kujukuri is about 60 km. The "7-Ri" beach at Shichiri is 4.2 km long.
Comparison of 1 square metre with some Imperial and metric units of area The square metre ( international spelling as used by the International Bureau of Weights and Measures ) or square meter ( American spelling ) is the unit of area in the International System of Units (SI) with symbol m 2 . [ 1 ]