hectare | 1 ha | 2 ha | 3 ha | 4 ha | 5 ha | 6 ha | 7 ha | 8 ha | 9 ha | 10 ha | 11 ha | 12 ha | 13 ha | 14 ha | 15 ha | 16 ha | 17 ha | 18 ha | 19 ha | 20 ha | 21 ha | 22 ha | 23 ha | 24 ha | 25 ha | 26 ha | 27 ha | 28 ha | 29 ha | 30 ha | 31 ha | 32 ha | 33 ha | 34 ha | 35 ha | 36 ha | 37 ha | 38 ha | 39 ha | 40 ha | 41 ha | 42 ha | 43 ha | 44 ha | 45 ha | 46 ha | 47 ha | 48 ha | 49 ha | 50 ha | 51 ha | 52 ha | 53 ha | 54 ha | 55 ha | 56 ha | 57 ha | 58 ha | 59 ha | 60 ha | 61 ha | 62 ha | 63 ha | 64 ha | 65 ha | 66 ha | 67 ha | 68 ha | 69 ha | 70 ha | 71 ha | 72 ha | 73 ha | 74 ha | 75 ha | 76 ha | 77 ha | 78 ha | 79 ha | 80 ha | 81 ha | 82 ha | 83 ha | 84 ha | 85 ha | 86 ha | 87 ha | 88 ha | 89 ha | 90 ha | 91 ha | 92 ha | 93 ha | 94 ha | 95 ha | 96 ha | 97 ha | 98 ha | 99 ha | 100 ha |
square chain (US Survey) | 24.7104369 sq ch | 49.4208738 sq ch | 74.1313108 sq ch | 98.8417477 sq ch | 123.5521846 sq ch | 148.2626215 sq ch | 172.9730585 sq ch | 197.6834954 sq ch | 222.3939323 sq ch | 247.1043692 sq ch | 271.8148061 sq ch | 296.5252431 sq ch | 321.2356800 sq ch | 345.9461169 sq ch | 370.6565538 sq ch | 395.3669908 sq ch | 420.0774277 sq ch | 444.7878646 sq ch | 469.4983015 sq ch | 494.2087385 sq ch | 518.9191754 sq ch | 543.6296123 sq ch | 568.3400492 sq ch | 593.0504861 sq ch | 617.7609231 sq ch | 642.4713600 sq ch | 667.1817969 sq ch | 691.8922338 sq ch | 716.6026708 sq ch | 741.3131077 sq ch | 766.0235446 sq ch | 790.7339815 sq ch | 815.4444184 sq ch | 840.1548554 sq ch | 864.8652923 sq ch | 889.5757292 sq ch | 914.2861661 sq ch | 938.9966031 sq ch | 963.7070400 sq ch | 988.4174769 sq ch | 1,013.1279138 sq ch | 1,037.8383507 sq ch | 1,062.5487877 sq ch | 1,087.2592246 sq ch | 1,111.9696615 sq ch | 1,136.6800984 sq ch | 1,161.3905354 sq ch | 1,186.1009723 sq ch | 1,210.8114092 sq ch | 1,235.5218461 sq ch | 1,260.2322830 sq ch | 1,284.9427200 sq ch | 1,309.6531569 sq ch | 1,334.3635938 sq ch | 1,359.0740307 sq ch | 1,383.7844677 sq ch | 1,408.4949046 sq ch | 1,433.2053415 sq ch | 1,457.9157784 sq ch | 1,482.6262154 sq ch | 1,507.3366523 sq ch | 1,532.0470892 sq ch | 1,556.7575261 sq ch | 1,581.4679630 sq ch | 1,606.1784000 sq ch | 1,630.8888369 sq ch | 1,655.5992738 sq ch | 1,680.3097107 sq ch | 1,705.0201477 sq ch | 1,729.7305846 sq ch | 1,754.4410215 sq ch | 1,779.1514584 sq ch | 1,803.8618953 sq ch | 1,828.5723323 sq ch | 1,853.2827692 sq ch | 1,877.9932061 sq ch | 1,902.7036430 sq ch | 1,927.4140800 sq ch | 1,952.1245169 sq ch | 1,976.8349538 sq ch | 2,001.5453907 sq ch | 2,026.2558276 sq ch | 2,050.9662646 sq ch | 2,075.6767015 sq ch | 2,100.3871384 sq ch | 2,125.0975753 sq ch | 2,149.8080123 sq ch | 2,174.5184492 sq ch | 2,199.2288861 sq ch | 2,223.9393230 sq ch | 2,248.6497600 sq ch | 2,273.3601969 sq ch | 2,298.0706338 sq ch | 2,322.7810707 sq ch | 2,347.4915076 sq ch | 2,372.2019446 sq ch | 2,396.9123815 sq ch | 2,421.6228184 sq ch | 2,446.3332553 sq ch | 2,471.0436923 sq ch |
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 chains (US Survey) | hectares | square chains (US Survey) |
---|---|---|---|
1 | = 24.710436922533 | 6 | = 148.2626215352 |
2 | = 49.420873845065 | 7 | = 172.97305845773 |
3 | = 74.131310767598 | 8 | = 197.68349538026 |
4 | = 98.84174769013 | 9 | = 222.39393230279 |
5 | = 123.55218461266 | 10 | = 247.10436922533 |
square chain (US Survey) is a unit of area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square chain (US Survey) | sq ch | ≡ 66 ft (US) × 66 ft (US) = 1⁄10 US survey acre | ≈ 404.6873 m2 | Imperial/US |
square chains (US Survey) | hectares | square chains (US Survey) | hectares |
---|---|---|---|
1 | = 0.04046873 | 6 | = 0.24281238 |
2 | = 0.08093746 | 7 | = 0.28328111 |
3 | = 0.12140619 | 8 | = 0.32374984 |
4 | = 0.16187492 | 9 | = 0.36421857 |
5 | = 0.20234365 | 10 | = 0.4046873 |
hectares | square chains (US Survey) |
---|---|
1 | = 24.7104369 |
0.0404687 | = 1 |
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 …) |