acre | 1 ac | 2 ac | 3 ac | 4 ac | 5 ac | 6 ac | 7 ac | 8 ac | 9 ac | 10 ac | 11 ac | 12 ac | 13 ac | 14 ac | 15 ac | 16 ac | 17 ac | 18 ac | 19 ac | 20 ac | 21 ac | 22 ac | 23 ac | 24 ac | 25 ac | 26 ac | 27 ac | 28 ac | 29 ac | 30 ac | 31 ac | 32 ac | 33 ac | 34 ac | 35 ac | 36 ac | 37 ac | 38 ac | 39 ac | 40 ac | 41 ac | 42 ac | 43 ac | 44 ac | 45 ac | 46 ac | 47 ac | 48 ac | 49 ac | 50 ac | 51 ac | 52 ac | 53 ac | 54 ac | 55 ac | 56 ac | 57 ac | 58 ac | 59 ac | 60 ac | 61 ac | 62 ac | 63 ac | 64 ac | 65 ac | 66 ac | 67 ac | 68 ac | 69 ac | 70 ac | 71 ac | 72 ac | 73 ac | 74 ac | 75 ac | 76 ac | 77 ac | 78 ac | 79 ac | 80 ac | 81 ac | 82 ac | 83 ac | 84 ac | 85 ac | 86 ac | 87 ac | 88 ac | 89 ac | 90 ac | 91 ac | 92 ac | 93 ac | 94 ac | 95 ac | 96 ac | 97 ac | 98 ac | 99 ac | 100 ac |
centiare | 4,046.85642 ca | 8,093.71284 ca | 12,140.56926 ca | 16,187.42568 ca | 20,234.2821 ca | 24,281.13852 ca | 28,327.99494 ca | 32,374.85136 ca | 36,421.70778 ca | 40,468.5642 ca | 44,515.42062 ca | 48,562.27704 ca | 52,609.13346 ca | 56,655.98988 ca | 60,702.8463 ca | 64,749.70272 ca | 68,796.55914 ca | 72,843.41556 ca | 76,890.27198 ca | 80,937.1284 ca | 84,983.98482 ca | 89,030.84124 ca | 93,077.69766 ca | 97,124.55408 ca | 101,171.4105 ca | 105,218.26692 ca | 109,265.12334 ca | 113,311.97976 ca | 117,358.83618 ca | 121,405.6926 ca | 125,452.54902 ca | 129,499.40544 ca | 133,546.26186 ca | 137,593.11828 ca | 141,639.9747 ca | 145,686.83112 ca | 149,733.68754 ca | 153,780.54396 ca | 157,827.40038 ca | 161,874.2568 ca | 165,921.11322 ca | 169,967.96964 ca | 174,014.82606 ca | 178,061.68248 ca | 182,108.5389 ca | 186,155.39532 ca | 190,202.25174 ca | 194,249.10816 ca | 198,295.96458 ca | 202,342.821 ca | 206,389.67742 ca | 210,436.53384 ca | 214,483.39026 ca | 218,530.24668 ca | 222,577.1031 ca | 226,623.95952 ca | 230,670.81594 ca | 234,717.67236 ca | 238,764.52878 ca | 242,811.3852 ca | 246,858.24162 ca | 250,905.09804 ca | 254,951.95446 ca | 258,998.81088 ca | 263,045.6673 ca | 267,092.52372 ca | 271,139.38014 ca | 275,186.23656 ca | 279,233.09298 ca | 283,279.9494 ca | 287,326.80582 ca | 291,373.66224 ca | 295,420.51866 ca | 299,467.37508 ca | 303,514.2315 ca | 307,561.08792 ca | 311,607.94434 ca | 315,654.80076 ca | 319,701.65718 ca | 323,748.5136 ca | 327,795.37002 ca | 331,842.22644 ca | 335,889.08286 ca | 339,935.93928 ca | 343,982.7957 ca | 348,029.65212 ca | 352,076.50854 ca | 356,123.36496 ca | 360,170.22138 ca | 364,217.0778 ca | 368,263.93422 ca | 372,310.79064 ca | 376,357.64706 ca | 380,404.50348 ca | 384,451.3599 ca | 388,498.21632 ca | 392,545.07274 ca | 396,591.92916 ca | 400,638.78558 ca | 404,685.642 ca |
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 | centiares | acres | centiares |
---|---|---|---|
1 | = 4046.85642 | 6 | = 24281.13852 |
2 | = 8093.71284 | 7 | = 28327.99494 |
3 | = 12140.56926 | 8 | = 32374.85136 |
4 | = 16187.42568 | 9 | = 36421.70778 |
5 | = 20234.2821 | 10 | = 40468.5642 |
The centiare is one square metre.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centiare | ca | = 1 m2 | = 1 m2 | Metric system SI |
centiares | acres | centiares | acres |
---|---|---|---|
1 | = 0.00024710538161371 | 6 | = 0.0014826322896823 |
2 | = 0.00049421076322742 | 7 | = 0.001729737671296 |
3 | = 0.00074131614484114 | 8 | = 0.0019768430529097 |
4 | = 0.00098842152645485 | 9 | = 0.0022239484345234 |
5 | = 0.0012355269080686 | 10 | = 0.0024710538161371 |
acres | centiares |
---|---|
1 | = 4,046.85642 |
0.0002471 | = 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 …) |