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Conversions of many more area units
Conversions of length units
Area and surface units conversion chart
Sorted in alphabetical order
Name of area unit, A |
Symbol |
Definition |
Relation to SI unit m² |
| acre | ac | ≡ 10 sq ch = 4840 sq yd | = 4046.856 422 4 m² |
| are | a | - | ≡ 100 m² |
| barn | b | - | ≡ 10−28 m² |
| barony | - | ≡ 4000 ac | = 1.618 742 568 96×107 m² |
| board | bd | ≡ 1 in × 1 ft | = 7.741 92×10−3 m² |
| boiler horsepower equivalent direct radiation |
bhp EDR | ≡ (1 ft²) (1 bhp) / (240 BTUIT/h) |
≈ 12.958 174 m² |
| circular inch | circ in | ≡ π/4 in² | ≈ 5.067 075×10−4 m² |
| circular mil; circular thou | circ mil | ≡ π/4 mil² | ≈ 5.067 075×10−10 m² |
| cord | - | ≡ 192 bd | = 1.486 448 64 m² |
| dunam | - | ≡ 1000 m² | = 1000 m² |
| hectare | ha | ≡ 10 000 m² | = 0.01 km² |
| hide | - | ≡ 100 ac | = 4.046 856 422 4×105 m² |
| rood | ro | ≡ ¼ ac | = 1011.714 105 6 m² |
| square chain | sq ch | ≡ 1 ch² | = 404.685 642 24 m² |
| square foot | sq ft | ≡ 1 ft² | = 9.290 304×10−2 m² |
| square inch | sq in | ≡ 1 in² | = 6.4516×10−4 m² |
| square kilometre | km² | ≡ 1 km² | = 106 m² |
| square link | sq lnk | ≡ 1 lnk² | = 4.046 856 422 4×10−2 m² |
| square metre (SI unit) | m² | ≡ 1 m × 1 m | = 1 m² |
| square mil; square thou | sq mil | ≡ 1 mil² | = 6.4516×10−10 m² |
| square mile; section | sq mi | ≡ 1 mi² | = 2.589 988 110 336×106 m² |
| square rod/pole/perch | sq rd | ≡ 1 rd² | = 25.292 852 64 m² |
| squareU.S. Survey mile | sq mi | ≡ 1 mi (US)² | ≈ 2.589 998×106 m² |
| square yard | sq yd | ≡ 1 yd² | = 0.836 127 36 m² |
| township | - | ≡ 36 sq mi (US) | ≈ 9.323 994×107 m² |
| yardland | - | ≡ 30 ac | = 1.214 056 926 72×105 m² |
| Unit | Equivalent area measures |
| Square Inch (sq in, in2) |
The area of a square measuring one inch on a side. There are 144 square inches in a square foot. 1 sq in = 6.4516 sq centimeters. |
| Square Foot (sq ft, ft2) |
The area of a square measuring one foot on a side. One sq foot = 144 sq inches = 929.0204 sq centimeters. |
| Square Yard (sq yd, yd2) |
The area of a square measuring one yard on a side. One sq yard = 9 sq feet = 0.836 127 36 sq meters. |
| Square Rod (sq rd, rd2) |
The area of a square measuring one rod (16.5 feet) on a side. One sq rod = 272.5 sq feet = 25.292 852 64 sq meters. Uncommon unit. |
| Acre (acre) |
The area of a square measuring approximately 209 feet on a side. 1 acre = 43,560 square feet = 4046.856 422 4 sq meters = 0.404 685 642 24 hectares. |
| Quarter Section ( ) |
The area of a square measuring 0.5 mile (2,640 feet) on a side. Four quarter sections make up one section, which is equivalent to one square mile. One quarter section = 160 acres = 0.648 sq kilometers = 6.9 million sq feet. |
| Square Mile (sq mi, mi2) |
The area of a square measuring one mile (5,280 feet) on a side. Also called a section. One sq mile = 640 acres = 2.589 988 110 336 sq kilometers = 27 million sq feet = 4 quarter sections. |
| Square Millimeter (sq mm, mm2) |
The area of a square measuring one millimeter (0.001 meters) on a side. One sq mm = 0.01 sq centimeters = 0.00155 sq inches. |
| Square Centimeter (sq cm, cm2) |
The area of a square measuring one centimeter (0.01 meters) on a side. One sq cm = 100 sq millimeters = 0.155 sq inches. |
| Square Meter (sq m, m2) |
The area of a square measuring one meter on a side. One sq m = 10.764 sq feet = 1.196 sq yards = 0.0001 ares. |
| Are (a) |
The area of a square measuring ten meters on a side. One are = 1076 sq feet = 100 sq meters = 0.01 hectares = 0.0247105 acres. |
| Hectare (ha) |
The area of a square measuring 100 meters on a side. One hectare = 2.47 acres = 10,000 sq meters = 0.01 sq kilometers. |
| Square Kilometers (sq km, km2) |
The area of a square measuring one kilometer on a side. One sq km = 247 acres = 100 hectares = 10,763,910 sq feet = 0.386 sq miles. |
| square millimeter | mm² | 1 | mm² | = 0,000001 m² |
| square centimeter | cm² | 1 | cm² | = 0,0001 m² |
| square decimeter | dm² | 1 | dm² | = 0,01 m² |
| square meter | m² | 1 | m² | = 0,01 a |
| are | a | 1 | a | = 100 m² |
| hectare | ha | 1 | ha | = 10000 m² |
| square kilometer | km² | 1 | km² | = 1000000 m² |
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