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 |
section | 0.0003906 section | 0.0007813 section | 0.0011719 section | 0.0015625 section | 0.0019531 section | 0.0023438 section | 0.0027344 section | 0.003125 section | 0.0035156 section | 0.0039063 section | 0.0042969 section | 0.0046875 section | 0.0050781 section | 0.0054688 section | 0.0058594 section | 0.00625 section | 0.0066406 section | 0.0070313 section | 0.0074219 section | 0.0078125 section | 0.0082031 section | 0.0085938 section | 0.0089844 section | 0.009375 section | 0.0097656 section | 0.0101563 section | 0.0105469 section | 0.0109375 section | 0.0113281 section | 0.0117188 section | 0.0121094 section | 0.0125 section | 0.0128906 section | 0.0132813 section | 0.0136719 section | 0.0140625 section | 0.0144531 section | 0.0148438 section | 0.0152344 section | 0.015625 section | 0.0160156 section | 0.0164063 section | 0.0167969 section | 0.0171875 section | 0.0175781 section | 0.0179688 section | 0.0183594 section | 0.01875 section | 0.0191406 section | 0.0195313 section | 0.0199219 section | 0.0203125 section | 0.0207031 section | 0.0210938 section | 0.0214844 section | 0.021875 section | 0.0222656 section | 0.0226563 section | 0.0230469 section | 0.0234375 section | 0.0238281 section | 0.0242188 section | 0.0246094 section | 0.025 section | 0.0253906 section | 0.0257813 section | 0.0261719 section | 0.0265625 section | 0.0269531 section | 0.0273438 section | 0.0277344 section | 0.028125 section | 0.0285156 section | 0.0289063 section | 0.0292969 section | 0.0296875 section | 0.0300781 section | 0.0304688 section | 0.0308594 section | 0.03125 section | 0.0316406 section | 0.0320313 section | 0.0324219 section | 0.0328125 section | 0.0332031 section | 0.0335938 section | 0.0339844 section | 0.034375 section | 0.0347656 section | 0.0351563 section | 0.0355469 section | 0.0359375 section | 0.0363281 section | 0.0367188 section | 0.0371094 section | 0.0375 section | 0.0378906 section | 0.0382813 section | 0.0386719 section | 0.0390625 section |
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 | sections | roods | sections |
---|---|---|---|
1 | = 0.000390625 | 6 | = 0.00234375 |
2 | = 0.00078125 | 7 | = 0.002734375 |
3 | = 0.001171875 | 8 | = 0.003125 |
4 | = 0.0015625 | 9 | = 0.003515625 |
5 | = 0.001953125 | 10 | = 0.00390625 |
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 | roods | sections | roods |
---|---|---|---|
1 | = 2560 | 6 | = 15360 |
2 | = 5120 | 7 | = 17920 |
3 | = 7680 | 8 | = 20480 |
4 | = 10240 | 9 | = 23040 |
5 | = 12800 | 10 | = 25600 |
roods | sections |
---|---|
1 | = 0.0003906 |
2 560 | = 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 …) |