rood | 1 ro | 2 ro | 3 ro | 4 ro | 5 ro | 6 ro | 7 ro | 8 ro | 9 ro | 10 ro | 11 ro | 12 ro | 13 ro | 14 ro | 15 ro | 16 ro | 17 ro | 18 ro | 19 ro | 20 ro | 21 ro | 22 ro | 23 ro | 24 ro | 25 ro | 26 ro | 27 ro | 28 ro | 29 ro | 30 ro | 31 ro | 32 ro | 33 ro | 34 ro | 35 ro | 36 ro | 37 ro | 38 ro | 39 ro | 40 ro | 41 ro | 42 ro | 43 ro | 44 ro | 45 ro | 46 ro | 47 ro | 48 ro | 49 ro | 50 ro | 51 ro | 52 ro | 53 ro | 54 ro | 55 ro | 56 ro | 57 ro | 58 ro | 59 ro | 60 ro | 61 ro | 62 ro | 63 ro | 64 ro | 65 ro | 66 ro | 67 ro | 68 ro | 69 ro | 70 ro | 71 ro | 72 ro | 73 ro | 74 ro | 75 ro | 76 ro | 77 ro | 78 ro | 79 ro | 80 ro | 81 ro | 82 ro | 83 ro | 84 ro | 85 ro | 86 ro | 87 ro | 88 ro | 89 ro | 90 ro | 91 ro | 92 ro | 93 ro | 94 ro | 95 ro | 96 ro | 97 ro | 98 ro | 99 ro | 100 ro |
acre | 0.2500000 ac | 0.5000000 ac | 0.7500000 ac | 1.0000000 ac | 1.2500000 ac | 1.5000000 ac | 1.7500000 ac | 2.0000000 ac | 2.2500000 ac | 2.5000000 ac | 2.7500000 ac | 3.0000000 ac | 3.2500000 ac | 3.5000000 ac | 3.7500000 ac | 4.0000000 ac | 4.2500000 ac | 4.5000000 ac | 4.7500000 ac | 5.0000000 ac | 5.2500000 ac | 5.5000000 ac | 5.7500000 ac | 6.0000000 ac | 6.2500000 ac | 6.5000000 ac | 6.7500000 ac | 7.0000000 ac | 7.2500000 ac | 7.5000000 ac | 7.7500000 ac | 8.0000000 ac | 8.2500000 ac | 8.5000000 ac | 8.7500000 ac | 9.0000000 ac | 9.2500000 ac | 9.5000000 ac | 9.7500000 ac | 10.0000000 ac | 10.2500000 ac | 10.5000000 ac | 10.7500000 ac | 11.0000000 ac | 11.2500000 ac | 11.5000000 ac | 11.7500000 ac | 12.0000000 ac | 12.2500000 ac | 12.5000000 ac | 12.7500000 ac | 13.0000000 ac | 13.2500000 ac | 13.5000000 ac | 13.7500000 ac | 14.0000000 ac | 14.2500000 ac | 14.5000000 ac | 14.7500000 ac | 15.0000000 ac | 15.2500000 ac | 15.5000000 ac | 15.7500000 ac | 16.0000000 ac | 16.2500000 ac | 16.5000000 ac | 16.7500000 ac | 17.0000000 ac | 17.2500000 ac | 17.5000000 ac | 17.7500000 ac | 18.0000000 ac | 18.2500000 ac | 18.5000000 ac | 18.7500000 ac | 19.0000000 ac | 19.2500000 ac | 19.5000000 ac | 19.7500000 ac | 20.0000000 ac | 20.2500000 ac | 20.5000000 ac | 20.7500000 ac | 21.0000000 ac | 21.2500000 ac | 21.5000000 ac | 21.7500000 ac | 22.0000000 ac | 22.2500000 ac | 22.5000000 ac | 22.7500000 ac | 23.0000000 ac | 23.2500000 ac | 23.5000000 ac | 23.7500000 ac | 24.0000000 ac | 24.2500000 ac | 24.5000000 ac | 24.7500000 ac | 25.0000000 ac |
A rood /ˈruːd/ is an historic English and international inch-pound measure of area, as well as an archaic English measure of length.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
rood | ro | ≡ 1⁄4 ac | = 1011.7141056 m2 | Imperial/US |
roods | acres | roods | acres |
---|---|---|---|
1 | = 0.25000000014826 | 6 | = 1.5000000008896 |
2 | = 0.50000000029653 | 7 | = 1.7500000010378 |
3 | = 0.75000000044479 | 8 | = 2.0000000011861 |
4 | = 1.0000000005931 | 9 | = 2.2500000013344 |
5 | = 1.2500000007413 | 10 | = 2.5000000014826 |
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 | roods | acres | roods |
---|---|---|---|
1 | = 3.9999999976278 | 6 | = 23.999999985767 |
2 | = 7.9999999952556 | 7 | = 27.999999983395 |
3 | = 11.999999992883 | 8 | = 31.999999981022 |
4 | = 15.999999990511 | 9 | = 35.99999997865 |
5 | = 19.999999988139 | 10 | = 39.999999976278 |
roods | acres |
---|---|
1 | = 0.2500000 |
4.0000000 | = 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 …) |