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 |
section | 0.0015625 section | 0.0031250 section | 0.0046875 section | 0.0062500 section | 0.0078125 section | 0.0093750 section | 0.0109375 section | 0.0125000 section | 0.0140625 section | 0.0156250 section | 0.0171875 section | 0.0187500 section | 0.0203125 section | 0.0218750 section | 0.0234375 section | 0.0250000 section | 0.0265625 section | 0.0281250 section | 0.0296875 section | 0.0312500 section | 0.0328125 section | 0.0343750 section | 0.0359375 section | 0.0375000 section | 0.0390625 section | 0.0406250 section | 0.0421875 section | 0.0437500 section | 0.0453125 section | 0.0468750 section | 0.0484375 section | 0.0500000 section | 0.0515625 section | 0.0531250 section | 0.0546875 section | 0.0562500 section | 0.0578125 section | 0.0593750 section | 0.0609375 section | 0.0625000 section | 0.0640625 section | 0.0656250 section | 0.0671875 section | 0.0687500 section | 0.0703125 section | 0.0718750 section | 0.0734375 section | 0.0750000 section | 0.0765625 section | 0.0781250 section | 0.0796875 section | 0.0812500 section | 0.0828125 section | 0.0843750 section | 0.0859375 section | 0.0875000 section | 0.0890625 section | 0.0906250 section | 0.0921875 section | 0.0937500 section | 0.0953125 section | 0.0968750 section | 0.0984375 section | 0.1000000 section | 0.1015625 section | 0.1031250 section | 0.1046875 section | 0.1062500 section | 0.1078125 section | 0.1093750 section | 0.1109375 section | 0.1125000 section | 0.1140625 section | 0.1156250 section | 0.1171875 section | 0.1187500 section | 0.1203125 section | 0.1218750 section | 0.1234375 section | 0.1250000 section | 0.1265625 section | 0.1281250 section | 0.1296875 section | 0.1312500 section | 0.1328125 section | 0.1343750 section | 0.1359375 section | 0.1375000 section | 0.1390625 section | 0.1406250 section | 0.1421875 section | 0.1437500 section | 0.1453125 section | 0.1468750 section | 0.1484375 section | 0.1500000 section | 0.1515625 section | 0.1531250 section | 0.1546875 section | 0.1562500 section |
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 | sections | acres | sections |
---|---|---|---|
1 | = 0.0015624999990734 | 6 | = 0.0093749999944401 |
2 | = 0.0031249999981467 | 7 | = 0.010937499993513 |
3 | = 0.0046874999972201 | 8 | = 0.012499999992587 |
4 | = 0.0062499999962934 | 9 | = 0.01406249999166 |
5 | = 0.0078124999953668 | 10 | = 0.015624999990734 |
a section is an area nominally one square mile (2.6 square kilometers), containing 640 acres (260 hectares), with 36 sections making up one survey township on a rectangular grid.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
section | ≡ 1 mi × 1 mi | = 2.589988110336×106 m2 | Imperial/US |
sections | acres | sections | acres |
---|---|---|---|
1 | = 640.00000037955 | 6 | = 3840.0000022773 |
2 | = 1280.0000007591 | 7 | = 4480.0000026569 |
3 | = 1920.0000011387 | 8 | = 5120.0000030364 |
4 | = 2560.0000015182 | 9 | = 5760.000003416 |
5 | = 3200.0000018978 | 10 | = 6400.0000037955 |
acres | sections |
---|---|
1 | = 0.0015625 |
640.0000004 | = 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 …) |