square chain (US Survey) | 1 sq ch | 2 sq ch | 3 sq ch | 4 sq ch | 5 sq ch | 6 sq ch | 7 sq ch | 8 sq ch | 9 sq ch | 10 sq ch | 11 sq ch | 12 sq ch | 13 sq ch | 14 sq ch | 15 sq ch | 16 sq ch | 17 sq ch | 18 sq ch | 19 sq ch | 20 sq ch | 21 sq ch | 22 sq ch | 23 sq ch | 24 sq ch | 25 sq ch | 26 sq ch | 27 sq ch | 28 sq ch | 29 sq ch | 30 sq ch | 31 sq ch | 32 sq ch | 33 sq ch | 34 sq ch | 35 sq ch | 36 sq ch | 37 sq ch | 38 sq ch | 39 sq ch | 40 sq ch | 41 sq ch | 42 sq ch | 43 sq ch | 44 sq ch | 45 sq ch | 46 sq ch | 47 sq ch | 48 sq ch | 49 sq ch | 50 sq ch | 51 sq ch | 52 sq ch | 53 sq ch | 54 sq ch | 55 sq ch | 56 sq ch | 57 sq ch | 58 sq ch | 59 sq ch | 60 sq ch | 61 sq ch | 62 sq ch | 63 sq ch | 64 sq ch | 65 sq ch | 66 sq ch | 67 sq ch | 68 sq ch | 69 sq ch | 70 sq ch | 71 sq ch | 72 sq ch | 73 sq ch | 74 sq ch | 75 sq ch | 76 sq ch | 77 sq ch | 78 sq ch | 79 sq ch | 80 sq ch | 81 sq ch | 82 sq ch | 83 sq ch | 84 sq ch | 85 sq ch | 86 sq ch | 87 sq ch | 88 sq ch | 89 sq ch | 90 sq ch | 91 sq ch | 92 sq ch | 93 sq ch | 94 sq ch | 95 sq ch | 96 sq ch | 97 sq ch | 98 sq ch | 99 sq ch | 100 sq ch |
hectare | 0.0404687 ha | 0.0809375 ha | 0.1214062 ha | 0.1618749 ha | 0.2023437 ha | 0.2428124 ha | 0.2832811 ha | 0.3237498 ha | 0.3642186 ha | 0.4046873 ha | 0.4451560 ha | 0.4856248 ha | 0.5260935 ha | 0.5665622 ha | 0.6070310 ha | 0.6474997 ha | 0.6879684 ha | 0.7284371 ha | 0.7689059 ha | 0.8093746 ha | 0.8498433 ha | 0.8903121 ha | 0.9307808 ha | 0.9712495 ha | 1.0117183 ha | 1.0521870 ha | 1.0926557 ha | 1.1331244 ha | 1.1735932 ha | 1.2140619 ha | 1.2545306 ha | 1.2949994 ha | 1.3354681 ha | 1.3759368 ha | 1.4164056 ha | 1.4568743 ha | 1.4973430 ha | 1.5378117 ha | 1.5782805 ha | 1.6187492 ha | 1.6592179 ha | 1.6996867 ha | 1.7401554 ha | 1.7806241 ha | 1.8210929 ha | 1.8615616 ha | 1.9020303 ha | 1.9424990 ha | 1.9829678 ha | 2.0234365 ha | 2.0639052 ha | 2.1043740 ha | 2.1448427 ha | 2.1853114 ha | 2.2257802 ha | 2.2662489 ha | 2.3067176 ha | 2.3471863 ha | 2.3876551 ha | 2.4281238 ha | 2.4685925 ha | 2.5090613 ha | 2.5495300 ha | 2.5899987 ha | 2.6304675 ha | 2.6709362 ha | 2.7114049 ha | 2.7518736 ha | 2.7923424 ha | 2.8328111 ha | 2.8732798 ha | 2.9137486 ha | 2.9542173 ha | 2.9946860 ha | 3.0351548 ha | 3.0756235 ha | 3.1160922 ha | 3.1565609 ha | 3.1970297 ha | 3.2374984 ha | 3.2779671 ha | 3.3184359 ha | 3.3589046 ha | 3.3993733 ha | 3.4398421 ha | 3.4803108 ha | 3.5207795 ha | 3.5612482 ha | 3.6017170 ha | 3.6421857 ha | 3.6826544 ha | 3.7231232 ha | 3.7635919 ha | 3.8040606 ha | 3.8445294 ha | 3.8849981 ha | 3.9254668 ha | 3.9659355 ha | 4.0064043 ha | 4.046873 ha |
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 |
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 chains (US Survey) | hectares |
---|---|
1 | = 0.0404687 |
24.7104369 | = 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 …) |