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 decameter | 40.4685642 dam2 | 80.9371284 dam2 | 121.4056926 dam2 | 161.8742568 dam2 | 202.342821 dam2 | 242.8113852 dam2 | 283.2799494 dam2 | 323.7485136 dam2 | 364.2170778 dam2 | 404.685642 dam2 | 445.1542062 dam2 | 485.6227704 dam2 | 526.0913346 dam2 | 566.5598988 dam2 | 607.028463 dam2 | 647.4970272 dam2 | 687.9655914 dam2 | 728.4341556 dam2 | 768.9027198 dam2 | 809.371284 dam2 | 849.8398482 dam2 | 890.3084124 dam2 | 930.7769766 dam2 | 971.2455408 dam2 | 1,011.714105 dam2 | 1,052.1826692 dam2 | 1,092.6512334 dam2 | 1,133.1197976 dam2 | 1,173.5883618 dam2 | 1,214.056926 dam2 | 1,254.5254902 dam2 | 1,294.9940544 dam2 | 1,335.4626186 dam2 | 1,375.9311828 dam2 | 1,416.399747 dam2 | 1,456.8683112 dam2 | 1,497.3368754 dam2 | 1,537.8054396 dam2 | 1,578.2740038 dam2 | 1,618.742568 dam2 | 1,659.2111322 dam2 | 1,699.6796964 dam2 | 1,740.1482606 dam2 | 1,780.6168248 dam2 | 1,821.085389 dam2 | 1,861.5539532 dam2 | 1,902.0225174 dam2 | 1,942.4910816 dam2 | 1,982.9596458 dam2 | 2,023.42821 dam2 | 2,063.8967742 dam2 | 2,104.3653384 dam2 | 2,144.8339026 dam2 | 2,185.3024668 dam2 | 2,225.771031 dam2 | 2,266.2395952 dam2 | 2,306.7081594 dam2 | 2,347.1767236 dam2 | 2,387.6452878 dam2 | 2,428.113852 dam2 | 2,468.5824162 dam2 | 2,509.0509804 dam2 | 2,549.5195446 dam2 | 2,589.9881088 dam2 | 2,630.456673 dam2 | 2,670.9252372 dam2 | 2,711.3938014 dam2 | 2,751.8623656 dam2 | 2,792.3309298 dam2 | 2,832.799494 dam2 | 2,873.2680582 dam2 | 2,913.7366224 dam2 | 2,954.2051866 dam2 | 2,994.6737508 dam2 | 3,035.142315 dam2 | 3,075.6108792 dam2 | 3,116.0794434 dam2 | 3,156.5480076 dam2 | 3,197.0165718 dam2 | 3,237.485136 dam2 | 3,277.9537002 dam2 | 3,318.4222644 dam2 | 3,358.8908286 dam2 | 3,399.3593928 dam2 | 3,439.827957 dam2 | 3,480.2965212 dam2 | 3,520.7650854 dam2 | 3,561.2336496 dam2 | 3,601.7022138 dam2 | 3,642.170778 dam2 | 3,682.6393422 dam2 | 3,723.1079064 dam2 | 3,763.5764706 dam2 | 3,804.0450348 dam2 | 3,844.513599 dam2 | 3,884.9821632 dam2 | 3,925.4507274 dam2 | 3,965.9192916 dam2 | 4,006.3878558 dam2 | 4,046.85642 dam2 |
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 decameters | acres | square decameters |
---|---|---|---|
1 | = 40.4685642 | 6 | = 242.8113852 |
2 | = 80.9371284 | 7 | = 283.2799494 |
3 | = 121.4056926 | 8 | = 323.7485136 |
4 | = 161.8742568 | 9 | = 364.2170778 |
5 | = 202.342821 | 10 | = 404.685642 |
Square decametre (International spelling as used by the International Bureau of Weights and Measures) or square decameter (American spelling) or are, symbol dam2, is the unit of area or surface area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
square decameter | dam2 | ≡ 1 dam × 1 dam ≡ 10 m × 10 m | = 102 m2 | Metric system SI |
square decameters | acres | square decameters | acres |
---|---|---|---|
1 | = 0.024710538161371 | 6 | = 0.14826322896823 |
2 | = 0.049421076322742 | 7 | = 0.1729737671296 |
3 | = 0.074131614484114 | 8 | = 0.19768430529097 |
4 | = 0.098842152645485 | 9 | = 0.22239484345234 |
5 | = 0.12355269080686 | 10 | = 0.24710538161371 |
acres | square decameters |
---|---|
1 | = 40.4685642 |
0.0247105 | = 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 …) |