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 |
board | 522,719.99969 bd | 1,045,439.99938 bd | 1,568,159.99907 bd | 2,090,879.99876 bd | 2,613,599.99845 bd | 3,136,319.99814 bd | 3,659,039.99783 bd | 4,181,759.99752 bd | 4,704,479.99721 bd | 5,227,199.9969 bd | 5,749,919.99659 bd | 6,272,639.99628 bd | 6,795,359.99597 bd | 7,318,079.99566 bd | 7,840,799.99535 bd | 8,363,519.99504 bd | 8,886,239.99473 bd | 9,408,959.99442 bd | 9,931,679.99411 bd | 10,454,399.9938 bd | 10,977,119.99349 bd | 11,499,839.99318 bd | 12,022,559.99287 bd | 12,545,279.99256 bd | 13,067,999.99225 bd | 13,590,719.99194 bd | 14,113,439.99163 bd | 14,636,159.99132 bd | 15,158,879.99101 bd | 15,681,599.9907 bd | 16,204,319.99039 bd | 16,727,039.99008 bd | 17,249,759.98977 bd | 17,772,479.98946 bd | 18,295,199.98915 bd | 18,817,919.98884 bd | 19,340,639.98853 bd | 19,863,359.98822 bd | 20,386,079.98791 bd | 20,908,799.9876 bd | 21,431,519.98729 bd | 21,954,239.98698 bd | 22,476,959.98667 bd | 22,999,679.98636 bd | 23,522,399.98605 bd | 24,045,119.98574 bd | 24,567,839.98543 bd | 25,090,559.98512 bd | 25,613,279.98481 bd | 26,135,999.9845 bd | 26,658,719.98419 bd | 27,181,439.98388 bd | 27,704,159.98357 bd | 28,226,879.98326 bd | 28,749,599.98295 bd | 29,272,319.98264 bd | 29,795,039.98233 bd | 30,317,759.98202 bd | 30,840,479.98171 bd | 31,363,199.9814 bd | 31,885,919.98109 bd | 32,408,639.98078 bd | 32,931,359.98047 bd | 33,454,079.98016 bd | 33,976,799.97985 bd | 34,499,519.97954 bd | 35,022,239.97923 bd | 35,544,959.97892 bd | 36,067,679.97861 bd | 36,590,399.9783 bd | 37,113,119.97799 bd | 37,635,839.97768 bd | 38,158,559.97737 bd | 38,681,279.97706 bd | 39,203,999.97675 bd | 39,726,719.97644 bd | 40,249,439.97613 bd | 40,772,159.97582 bd | 41,294,879.97551 bd | 41,817,599.9752 bd | 42,340,319.97489 bd | 42,863,039.97458 bd | 43,385,759.97427 bd | 43,908,479.97396 bd | 44,431,199.97365 bd | 44,953,919.97334 bd | 45,476,639.97303 bd | 45,999,359.97272 bd | 46,522,079.97241 bd | 47,044,799.9721 bd | 47,567,519.97179 bd | 48,090,239.97148 bd | 48,612,959.97117 bd | 49,135,679.97086 bd | 49,658,399.97055 bd | 50,181,119.97024 bd | 50,703,839.96993 bd | 51,226,559.96962 bd | 51,749,279.96931 bd | 52,271,999.969 bd |
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 | boards | acres | boards |
---|---|---|---|
1 | ≡ 522719.99969 | 6 | ≡ 3136319.99814 |
2 | ≡ 1045439.99938 | 7 | ≡ 3659039.99783 |
3 | ≡ 1568159.99907 | 8 | ≡ 4181759.99752 |
4 | ≡ 2090879.99876 | 9 | ≡ 4704479.99721 |
5 | ≡ 2613599.99845 | 10 | ≡ 5227199.9969 |
Board is a unit of area.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
board | bd | ≡ 1 in × 1 ft | ≡ 7.74192×10−3 m2 | Other |
boards | acres | boards | acres |
---|---|---|---|
1 | ≡ 1.9130700960228E-6 | 6 | ≡ 1.1478420576137E-5 |
2 | ≡ 3.8261401920457E-6 | 7 | ≡ 1.339149067216E-5 |
3 | ≡ 5.7392102880685E-6 | 8 | ≡ 1.5304560768183E-5 |
4 | ≡ 7.6522803840913E-6 | 9 | ≡ 1.7217630864205E-5 |
5 | ≡ 9.5653504801141E-6 | 10 | ≡ 1.9130700960228E-5 |
acres | boards |
---|---|
1 | ≡ 522,719.99969 |
1.9130700960228 × 10-6 | ≡ 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 …) |