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 inch | 15,500,031.000062 sq in | 31,000,062.000124 sq in | 46,500,093.000186 sq in | 62,000,124.000248 sq in | 77,500,155.00031 sq in | 93,000,186.000372 sq in | 108,500,217.00043 sq in | 124,000,248.0005 sq in | 139,500,279.00056 sq in | 155,000,310.00062 sq in | 170,500,341.00068 sq in | 186,000,372.00074 sq in | 201,500,403.00081 sq in | 217,000,434.00087 sq in | 232,500,465.00093 sq in | 248,000,496.00099 sq in | 263,500,527.00105 sq in | 279,000,558.00112 sq in | 294,500,589.00118 sq in | 310,000,620.00124 sq in | 325,500,651.0013 sq in | 341,000,682.00136 sq in | 356,500,713.00143 sq in | 372,000,744.00149 sq in | 387,500,775.00155 sq in | 403,000,806.00161 sq in | 418,500,837.00167 sq in | 434,000,868.00174 sq in | 449,500,899.0018 sq in | 465,000,930.00186 sq in | 480,500,961.00192 sq in | 496,000,992.00198 sq in | 511,501,023.00205 sq in | 527,001,054.00211 sq in | 542,501,085.00217 sq in | 558,001,116.00223 sq in | 573,501,147.00229 sq in | 589,001,178.00236 sq in | 604,501,209.00242 sq in | 620,001,240.00248 sq in | 635,501,271.00254 sq in | 651,001,302.0026 sq in | 666,501,333.00267 sq in | 682,001,364.00273 sq in | 697,501,395.00279 sq in | 713,001,426.00285 sq in | 728,501,457.00291 sq in | 744,001,488.00298 sq in | 759,501,519.00304 sq in | 775,001,550.0031 sq in | 790,501,581.00316 sq in | 806,001,612.00322 sq in | 821,501,643.00329 sq in | 837,001,674.00335 sq in | 852,501,705.00341 sq in | 868,001,736.00347 sq in | 883,501,767.00353 sq in | 899,001,798.0036 sq in | 914,501,829.00366 sq in | 930,001,860.00372 sq in | 945,501,891.00378 sq in | 961,001,922.00384 sq in | 976,501,953.00391 sq in | 992,001,984.00397 sq in | 1,007,502,015.004 sq in | 1,023,002,046.0041 sq in | 1,038,502,077.0042 sq in | 1,054,002,108.0042 sq in | 1,069,502,139.0043 sq in | 1,085,002,170.0043 sq in | 1,100,502,201.0044 sq in | 1,116,002,232.0045 sq in | 1,131,502,263.0045 sq in | 1,147,002,294.0046 sq in | 1,162,502,325.0047 sq in | 1,178,002,356.0047 sq in | 1,193,502,387.0048 sq in | 1,209,002,418.0048 sq in | 1,224,502,449.0049 sq in | 1,240,002,480.005 sq in | 1,255,502,511.005 sq in | 1,271,002,542.0051 sq in | 1,286,502,573.0051 sq in | 1,302,002,604.0052 sq in | 1,317,502,635.0053 sq in | 1,333,002,666.0053 sq in | 1,348,502,697.0054 sq in | 1,364,002,728.0055 sq in | 1,379,502,759.0055 sq in | 1,395,002,790.0056 sq in | 1,410,502,821.0056 sq in | 1,426,002,852.0057 sq in | 1,441,502,883.0058 sq in | 1,457,002,914.0058 sq in | 1,472,502,945.0059 sq in | 1,488,002,976.006 sq in | 1,503,503,007.006 sq in | 1,519,003,038.0061 sq in | 1,534,503,069.0061 sq in | 1,550,003,100.0062 sq in |
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 inches | hectares | square inches |
---|---|---|---|
1 | ≡ 15500031.000062 | 6 | ≡ 93000186.000372 |
2 | ≡ 31000062.000124 | 7 | ≡ 108500217.00043 |
3 | ≡ 46500093.000186 | 8 | ≡ 124000248.0005 |
4 | ≡ 62000124.000248 | 9 | ≡ 139500279.00056 |
5 | ≡ 77500155.00031 | 10 | ≡ 155000310.00062 |
A square inch (plural: square inches) is a unit of area, equal to the area of a square with sides of one inch.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square inch | sq in | ≡ 1 in × 1 in | ≡ 6.4516×10−4 m2 | Imperial/US |
square inches | hectares | square inches | hectares |
---|---|---|---|
1 | ≡ 6.4516E-8 | 6 | ≡ 3.87096E-7 |
2 | ≡ 1.29032E-7 | 7 | ≡ 4.51612E-7 |
3 | ≡ 1.93548E-7 | 8 | ≡ 5.16128E-7 |
4 | ≡ 2.58064E-7 | 9 | ≡ 5.80644E-7 |
5 | ≡ 3.2258E-7 | 10 | ≡ 6.4516E-7 |
hectares | square inches |
---|---|
1 | ≡ 15,500,031.000062 |
6.4516 × 10-8 | ≡ 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 …) |