Square miles (mi²)
The square mile is the area of a square one mile on each side, 640 acres or about 2.59 square kilometers.
Convert square miles to any area unit
1 square mile = 2,589,988.11 square meters
Quick facts
- Unit
- Square mile (plural: square miles)
- Symbol
- mi²
- Measures
- Area
- System
- US & imperial
- Equals
- 2,589,988.11034 square meters
- Definition
- 640 acres (about 2.58999 km²).
- Also written
- sq mi, mi2
1 square mile in other units
| Square meters | 2,589,988.11 m² |
| Square feet | 27,878,400 ft² |
| Acres | 640 ac |
| Hectares | 258.998811 ha |
| Square kilometers | 2.58998811 km² |
| Square centimeters | 25,899,881,100 cm² |
| Square yards | 3,097,600 yd² |
| Square inches | 4,014,489,600 in² |
What is a square mile?
The square mile is the area of a square one mile on each side, 640 acres or about 2.59 square kilometers. It is used in the US and UK for the areas of cities, counties, states and countries.
Where the square mile sits among area units
The square mile is number 104 of 112 on our scale of area units, ordered from smallest to largest.
Square miles in real life
- The City of London is known as the "Square Mile" (actually 1.12 mi²)
- Manhattan is about 22.8 mi²
- Texas is about 268,600 mi²
One square mile is about 5.3 Vatican Cities, or about 1.3 Monacos, or about 76% of Central Park, or about 129 Manhattan city blocks.
Top square mile conversions
- Square miles to square meters
- Square miles to square feet
- Square miles to acres
- Square miles to hectares
- Square miles to square kilometers
- Square miles to square centimeters
- Square miles to square yards
- Square miles to square inches
- Square miles to square millimeters
- Square miles to pyeong
- Square miles to bighas
- Square miles to mu
Common amounts of square miles
- 0.1 mi²
- 0.2 mi²
- 0.3 mi²
- 0.4 mi²
- 0.5 mi²
- 0.6 mi²
- 0.7 mi²
- 0.8 mi²
- 0.9 mi²
- 1 mi²
- 1.5 mi²
- 2 mi²
- 2.5 mi²
- 3 mi²
- 3.5 mi²
- 4 mi²
- 4.5 mi²
- 5 mi²
- 6 mi²
- 7 mi²
- 7.5 mi²
- 8 mi²
- 9 mi²
- 10 mi²
- 11 mi²
- 12 mi²
- 13 mi²
- 14 mi²
- 15 mi²
- 16 mi²
- 17 mi²
- 18 mi²
- 19 mi²
- 20 mi²
- 21 mi²
- 22 mi²
- 23 mi²
- 24 mi²
- 25 mi²
- 26 mi²
- 27 mi²
- 28 mi²
- 29 mi²
- 30 mi²
- 31 mi²
- 32 mi²
- 33 mi²
- 34 mi²
- 35 mi²
- 36 mi²
- 37 mi²
- 38 mi²
- 39 mi²
- 40 mi²
- 41 mi²
- 42 mi²
- 43 mi²
- 44 mi²
- 45 mi²
- 46 mi²
- 47 mi²
- 48 mi²
- 49 mi²
- 50 mi²
- 51 mi²
- 52 mi²
- 53 mi²
- 54 mi²
- 55 mi²
- 56 mi²
- 57 mi²
- 58 mi²
- 59 mi²
- 60 mi²
- 61 mi²
- 62 mi²
- 63 mi²
- 64 mi²
- 65 mi²
- 66 mi²
- 67 mi²
- 68 mi²
- 69 mi²
- 70 mi²
- 71 mi²
- 72 mi²
- 73 mi²
- 74 mi²
- 75 mi²
- 76 mi²
- 77 mi²
- 78 mi²
- 79 mi²
- 80 mi²
- 81 mi²
- 82 mi²
- 83 mi²
- 84 mi²
- 85 mi²
- 86 mi²
- 87 mi²
- 88 mi²
- 89 mi²
- 90 mi²
- 91 mi²
- 92 mi²
- 93 mi²
- 94 mi²
- 95 mi²
- 96 mi²
- 97 mi²
- 98 mi²
- 99 mi²
- 100 mi²
- 110 mi²
- 120 mi²
- 130 mi²
- 140 mi²
- 150 mi²
- 160 mi²
- 170 mi²
- 180 mi²
- 190 mi²
- 200 mi²
- 210 mi²
- 220 mi²
- 230 mi²
- 240 mi²
- 250 mi²
- 260 mi²
- 270 mi²
- 280 mi²
- 290 mi²
- 300 mi²
- 310 mi²
- 320 mi²
- 330 mi²
- 340 mi²
- 350 mi²
- 360 mi²
- 370 mi²
- 380 mi²
- 390 mi²
- 400 mi²
- 410 mi²
- 420 mi²
- 430 mi²
- 440 mi²
- 450 mi²
- 460 mi²
- 470 mi²
- 480 mi²
- 490 mi²
- 500 mi²
- 600 mi²
- 700 mi²
- 800 mi²
- 900 mi²
- 1,000 mi²
- 1,200 mi²
- 1,500 mi²
- 2,000 mi²
- 2,500 mi²
- 3,000 mi²
- 4,000 mi²
- 5,000 mi²
- 10,000 mi²
Convert square miles to all 111 other units
Metric
US & imperial
- mi² to ft²
- mi² to ac
- mi² to yd²
- mi² to in²
- mi² to cmil
- mi² to roofing square
- mi² to section
- mi² to rd²
- mi² to US survey acre
- mi² to rood
- mi² to ch²
- mi² to mil²
- mi² to township
- mi² to homestead
- mi² to Irish acre
- mi² to Scottish acre
- mi² to circular inch
- mi² to Cheshire acre
East & Southeast Asian
- mi² to 평
- mi² to 亩
- mi² to 坪
- mi² to ไร่
- mi² to 坪
- mi² to งาน
- mi² to ตร.ว.
- mi² to 顷
- mi² to 町
- mi² to 甲
- mi² to 反
- mi² to 分
- mi² to 단보
- mi² to 정보
- mi² to 畝
- mi² to 厘
- mi² to 合
- mi² to 分
- mi² to 마지기
- mi² to square chi
South Asian
- mi² to bigha
- mi² to kanal
- mi² to marla
- mi² to cent
- mi² to kattha
- mi² to guntha
- mi² to biswa
- mi² to ground
- mi² to ankanam
- mi² to chatak
- mi² to dhur
- mi² to killa
- mi² to murabba
European & Middle Eastern
- mi² to dunam
- mi² to feddan
- mi² to arpent
- mi² to Morgen
- mi² to Joch
- mi² to desyatina
- mi² to jerib
- mi² to qirat
- mi² to Tagwerk
- mi² to square perch (French)
- mi² to square sazhen
- mi² to square versta
Latin American
- mi² to manzana
- mi² to alqueire paulista
- mi² to alqueire mineiro
- mi² to v²
- mi² to cuadra (area)
- mi² to fanega (area)
- mi² to tarea
- mi² to alqueire baiano
- mi² to caballeria
- mi² to square braca
Ancient
- mi² to jugerum
- mi² to aroura
- mi² to centuria
- mi² to actus
- mi² to heredium
- mi² to saltus
- mi² to square Roman foot
- mi² to square plethron
Scientific
Everyday comparisons
Convert to square miles
- Square meters to square miles
- Square feet to square miles
- Acres to square miles
- Hectares to square miles
- Square kilometers to square miles
- Square centimeters to square miles
- Square yards to square miles
- Square inches to square miles
- Square millimeters to square miles
- Pyeong to square miles
- Bighas to square miles
- Mu to square miles
Frequently asked questions
What is a square mile?
The square mile is the area of a square one mile on each side, 640 acres or about 2.59 square kilometers.
How is the square mile defined?
640 acres (about 2.58999 km²).
How many square meters are in a square mile?
One square mile equals 2,589,988.11 square meters.
How many square feet are in a square mile?
One square mile equals 27,878,400 square feet.
How many acres are in a square mile?
One square mile equals 640 acres.