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 |
acre | 2.4710538 ac | 4.9421076 ac | 7.4131614 ac | 9.8842153 ac | 12.3552691 ac | 14.8263229 ac | 17.2973767 ac | 19.7684305 ac | 22.2394843 ac | 24.7105382 ac | 27.1815920 ac | 29.6526458 ac | 32.1236996 ac | 34.5947534 ac | 37.0658072 ac | 39.5368611 ac | 42.0079149 ac | 44.4789687 ac | 46.9500225 ac | 49.4210763 ac | 51.8921301 ac | 54.3631840 ac | 56.8342378 ac | 59.3052916 ac | 61.7763454 ac | 64.2473992 ac | 66.7184530 ac | 69.1895069 ac | 71.6605607 ac | 74.1316145 ac | 76.6026683 ac | 79.0737221 ac | 81.5447759 ac | 84.0158297 ac | 86.4868836 ac | 88.9579374 ac | 91.4289912 ac | 93.9000450 ac | 96.3710988 ac | 98.8421526 ac | 101.3132065 ac | 103.7842603 ac | 106.2553141 ac | 108.7263679 ac | 111.1974217 ac | 113.6684755 ac | 116.1395294 ac | 118.6105832 ac | 121.0816370 ac | 123.5526908 ac | 126.0237446 ac | 128.4947984 ac | 130.9658523 ac | 133.4369061 ac | 135.9079599 ac | 138.3790137 ac | 140.8500675 ac | 143.3211213 ac | 145.7921752 ac | 148.2632290 ac | 150.7342828 ac | 153.2053366 ac | 155.6763904 ac | 158.1474442 ac | 160.6184980 ac | 163.0895519 ac | 165.5606057 ac | 168.0316595 ac | 170.5027133 ac | 172.9737671 ac | 175.4448209 ac | 177.9158748 ac | 180.3869286 ac | 182.8579824 ac | 185.3290362 ac | 187.8000900 ac | 190.2711438 ac | 192.7421977 ac | 195.2132515 ac | 197.6843053 ac | 200.1553591 ac | 202.6264129 ac | 205.0974667 ac | 207.5685206 ac | 210.0395744 ac | 212.5106282 ac | 214.9816820 ac | 217.4527358 ac | 219.9237896 ac | 222.3948435 ac | 224.8658973 ac | 227.3369511 ac | 229.8080049 ac | 232.2790587 ac | 234.7501125 ac | 237.2211663 ac | 239.6922202 ac | 242.1632740 ac | 244.6343278 ac | 247.1053816 ac |
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 | acres | hectares | acres |
---|---|---|---|
1 | ≡ 2.4710538161371 | 6 | ≡ 14.826322896823 |
2 | ≡ 4.9421076322742 | 7 | ≡ 17.29737671296 |
3 | ≡ 7.4131614484114 | 8 | ≡ 19.768430529097 |
4 | ≡ 9.8842152645485 | 9 | ≡ 22.239484345234 |
5 | ≡ 12.355269080686 | 10 | ≡ 24.710538161371 |
The acre is a unit of land area used in the imperial and US customary systems. It is defined as the area of 1 chain by 1 furlong (66 by 660 feet), which is exactly equal to 1⁄640 of a square mile, 43,560 square feet, approximately 4,047 m2, or about 40% of a hectare.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
acre | ac | ≡ 1 ch × 10 ch = 4840 sq yd | ≡ 4046.8564224 m2 | Imperial/US |
acres | hectares | acres | hectares |
---|---|---|---|
1 | ≡ 0.404685642 | 6 | ≡ 2.428113852 |
2 | ≡ 0.809371284 | 7 | ≡ 2.832799494 |
3 | ≡ 1.214056926 | 8 | ≡ 3.237485136 |
4 | ≡ 1.618742568 | 9 | ≡ 3.642170778 |
5 | ≡ 2.02342821 | 10 | ≡ 4.04685642 |
hectares | acres |
---|---|
1 | ≡ 2.4710538 |
0.4046856 | ≡ 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 …) |