square kilometer | 1 km2 | 2 km2 | 3 km2 | 4 km2 | 5 km2 | 6 km2 | 7 km2 | 8 km2 | 9 km2 | 10 km2 | 11 km2 | 12 km2 | 13 km2 | 14 km2 | 15 km2 | 16 km2 | 17 km2 | 18 km2 | 19 km2 | 20 km2 | 21 km2 | 22 km2 | 23 km2 | 24 km2 | 25 km2 | 26 km2 | 27 km2 | 28 km2 | 29 km2 | 30 km2 | 31 km2 | 32 km2 | 33 km2 | 34 km2 | 35 km2 | 36 km2 | 37 km2 | 38 km2 | 39 km2 | 40 km2 | 41 km2 | 42 km2 | 43 km2 | 44 km2 | 45 km2 | 46 km2 | 47 km2 | 48 km2 | 49 km2 | 50 km2 | 51 km2 | 52 km2 | 53 km2 | 54 km2 | 55 km2 | 56 km2 | 57 km2 | 58 km2 | 59 km2 | 60 km2 | 61 km2 | 62 km2 | 63 km2 | 64 km2 | 65 km2 | 66 km2 | 67 km2 | 68 km2 | 69 km2 | 70 km2 | 71 km2 | 72 km2 | 73 km2 | 74 km2 | 75 km2 | 76 km2 | 77 km2 | 78 km2 | 79 km2 | 80 km2 | 81 km2 | 82 km2 | 83 km2 | 84 km2 | 85 km2 | 86 km2 | 87 km2 | 88 km2 | 89 km2 | 90 km2 | 91 km2 | 92 km2 | 93 km2 | 94 km2 | 95 km2 | 96 km2 | 97 km2 | 98 km2 | 99 km2 | 100 km2 |
hectare | 100 ha | 200 ha | 300 ha | 400 ha | 500 ha | 600 ha | 700 ha | 800 ha | 900 ha | 1 000 ha | 1 100 ha | 1 200 ha | 1 300 ha | 1 400 ha | 1 500 ha | 1 600 ha | 1 700 ha | 1 800 ha | 1 900 ha | 2 000 ha | 2 100 ha | 2 200 ha | 2 300 ha | 2 400 ha | 2 500 ha | 2 600 ha | 2 700 ha | 2 800 ha | 2 900 ha | 3 000 ha | 3 100 ha | 3 200 ha | 3 300 ha | 3 400 ha | 3 500 ha | 3 600 ha | 3 700 ha | 3 800 ha | 3 900 ha | 4 000 ha | 4 100 ha | 4 200 ha | 4 300 ha | 4 400 ha | 4 500 ha | 4 600 ha | 4 700 ha | 4 800 ha | 4 900 ha | 5 000 ha | 5 100 ha | 5 200 ha | 5 300 ha | 5 400 ha | 5 500 ha | 5 600 ha | 5 700 ha | 5 800 ha | 5 900 ha | 6 000 ha | 6 100 ha | 6 200 ha | 6 300 ha | 6 400 ha | 6 500 ha | 6 600 ha | 6 700 ha | 6 800 ha | 6 900 ha | 7 000 ha | 7 100 ha | 7 200 ha | 7 300 ha | 7 400 ha | 7 500 ha | 7 600 ha | 7 700 ha | 7 800 ha | 7 900 ha | 8 000 ha | 8 100 ha | 8 200 ha | 8 300 ha | 8 400 ha | 8 500 ha | 8 600 ha | 8 700 ha | 8 800 ha | 8 900 ha | 9 000 ha | 9 100 ha | 9 200 ha | 9 300 ha | 9 400 ha | 9 500 ha | 9 600 ha | 9 700 ha | 9 800 ha | 9 900 ha | 10 000 ha |
Square kilometre (International spelling as used by the International Bureau of Weights and Measures) or square kilometer (American spelling), symbol km2, is a multiple of the square metre, the SI unit of area or surface area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square kilometer | km2 | ≡ 1 km × 1 km | = 106 m2 | Metric system SI |
square kilometers | hectares | square kilometers | hectares |
---|---|---|---|
1 | = 100 | 6 | = 600 |
2 | = 200 | 7 | = 700 |
3 | = 300 | 8 | = 800 |
4 | = 400 | 9 | = 900 |
5 | = 500 | 10 | = 1000 |
The hectare (/ˈhɛktɛər/ or /ˈhɛktɑːr/), although not a unit of SI, is the only named unit of area that is accepted for use within the SI. In practice the hectare is fully derived from the SI, being equivalent to a square hectometre. It is widely used throughout the world for the measurement of large areas of land, and it is the legal unit of measure in domains concerned with land ownership, planning, and management, including law (land deeds), agriculture, forestry, and town planning throughout the European Union. The United Kingdom, United States, Burma, and to some extent Canada instead use the acre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
hectare | ha | ≡ 10000 m2 | ≡ 10000 m2 | Metric system SI |
hectares | square kilometers | hectares | square kilometers |
---|---|---|---|
1 | = 0.01 | 6 | = 0.06 |
2 | = 0.02 | 7 | = 0.07 |
3 | = 0.03 | 8 | = 0.08 |
4 | = 0.04 | 9 | = 0.09 |
5 | = 0.05 | 10 | = 0.1 |
square kilometers | hectares |
---|---|
1 | = 100 |
0.01 | = 1 |
You can find the conversion in other languages in the following:
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |