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 |
square chain (US Survey) | 9.9999590 sq ch | 19.9999181 sq ch | 29.9998771 sq ch | 39.9998361 sq ch | 49.9997952 sq ch | 59.9997542 sq ch | 69.9997132 sq ch | 79.9996722 sq ch | 89.9996313 sq ch | 99.9995903 sq ch | 109.9995493 sq ch | 119.9995084 sq ch | 129.9994674 sq ch | 139.9994264 sq ch | 149.9993855 sq ch | 159.9993445 sq ch | 169.9993035 sq ch | 179.9992625 sq ch | 189.9992216 sq ch | 199.9991806 sq ch | 209.9991396 sq ch | 219.9990987 sq ch | 229.9990577 sq ch | 239.9990167 sq ch | 249.9989758 sq ch | 259.9989348 sq ch | 269.9988938 sq ch | 279.9988528 sq ch | 289.9988119 sq ch | 299.9987709 sq ch | 309.9987299 sq ch | 319.9986890 sq ch | 329.9986480 sq ch | 339.9986070 sq ch | 349.9985661 sq ch | 359.9985251 sq ch | 369.9984841 sq ch | 379.9984431 sq ch | 389.9984022 sq ch | 399.9983612 sq ch | 409.9983202 sq ch | 419.9982793 sq ch | 429.9982383 sq ch | 439.9981973 sq ch | 449.9981564 sq ch | 459.9981154 sq ch | 469.9980744 sq ch | 479.9980334 sq ch | 489.9979925 sq ch | 499.9979515 sq ch | 509.9979105 sq ch | 519.9978696 sq ch | 529.9978286 sq ch | 539.9977876 sq ch | 549.9977467 sq ch | 559.9977057 sq ch | 569.9976647 sq ch | 579.9976237 sq ch | 589.9975828 sq ch | 599.9975418 sq ch | 609.9975008 sq ch | 619.9974599 sq ch | 629.9974189 sq ch | 639.9973779 sq ch | 649.9973370 sq ch | 659.9972960 sq ch | 669.9972550 sq ch | 679.9972140 sq ch | 689.9971731 sq ch | 699.9971321 sq ch | 709.9970911 sq ch | 719.9970502 sq ch | 729.9970092 sq ch | 739.9969682 sq ch | 749.9969273 sq ch | 759.9968863 sq ch | 769.9968453 sq ch | 779.9968043 sq ch | 789.9967634 sq ch | 799.9967224 sq ch | 809.9966814 sq ch | 819.9966405 sq ch | 829.9965995 sq ch | 839.9965585 sq ch | 849.9965176 sq ch | 859.9964766 sq ch | 869.9964356 sq ch | 879.9963946 sq ch | 889.9963537 sq ch | 899.9963127 sq ch | 909.9962717 sq ch | 919.9962308 sq ch | 929.9961898 sq ch | 939.9961488 sq ch | 949.9961079 sq ch | 959.9960669 sq ch | 969.9960259 sq ch | 979.9959849 sq ch | 989.9959440 sq ch | 999.9959030 sq ch |
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 | square chains (US Survey) | acres | square chains (US Survey) |
---|---|---|---|
1 | = 9.9999590300956 | 6 | = 59.999754180573 |
2 | = 19.999918060191 | 7 | = 69.999713210669 |
3 | = 29.999877090287 | 8 | = 79.999672240765 |
4 | = 39.999836120382 | 9 | = 89.99963127086 |
5 | = 49.999795150478 | 10 | = 99.999590300956 |
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) | acres | square chains (US Survey) | acres |
---|---|---|---|
1 | = 0.10000040970072 | 6 | = 0.60000245820434 |
2 | = 0.20000081940145 | 7 | = 0.70000286790506 |
3 | = 0.30000122910217 | 8 | = 0.80000327760578 |
4 | = 0.40000163880289 | 9 | = 0.9000036873065 |
5 | = 0.50000204850361 | 10 | = 1.0000040970072 |
acres | square chains (US Survey) |
---|---|
1 | = 9.9999590 |
0.1000004 | = 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 …) |