| 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 |
| square chain (international) | 2.5 sq ch | 5 sq ch | 7.5 sq ch | 10 sq ch | 12.5 sq ch | 15 sq ch | 17.5 sq ch | 20 sq ch | 22.5 sq ch | 25 sq ch | 27.5 sq ch | 30 sq ch | 32.5 sq ch | 35 sq ch | 37.5 sq ch | 40 sq ch | 42.5 sq ch | 45 sq ch | 47.5 sq ch | 50 sq ch | 52.5 sq ch | 55 sq ch | 57.5 sq ch | 60 sq ch | 62.5 sq ch | 65 sq ch | 67.5 sq ch | 70 sq ch | 72.5 sq ch | 75 sq ch | 77.5 sq ch | 80 sq ch | 82.5 sq ch | 85 sq ch | 87.5 sq ch | 90 sq ch | 92.5 sq ch | 95 sq ch | 97.5 sq ch | 100 sq ch | 102.5 sq ch | 105 sq ch | 107.5 sq ch | 110 sq ch | 112.5 sq ch | 115 sq ch | 117.5 sq ch | 120 sq ch | 122.5 sq ch | 125 sq ch | 127.5 sq ch | 130 sq ch | 132.5 sq ch | 135 sq ch | 137.5 sq ch | 140 sq ch | 142.5 sq ch | 145 sq ch | 147.5 sq ch | 150 sq ch | 152.5 sq ch | 155 sq ch | 157.5 sq ch | 160 sq ch | 162.5 sq ch | 165 sq ch | 167.5 sq ch | 170 sq ch | 172.5 sq ch | 175 sq ch | 177.5 sq ch | 180 sq ch | 182.5 sq ch | 185 sq ch | 187.5 sq ch | 190 sq ch | 192.5 sq ch | 195 sq ch | 197.5 sq ch | 200 sq ch | 202.5 sq ch | 205 sq ch | 207.5 sq ch | 210 sq ch | 212.5 sq ch | 215 sq ch | 217.5 sq ch | 220 sq ch | 222.5 sq ch | 225 sq ch | 227.5 sq ch | 230 sq ch | 232.5 sq ch | 235 sq ch | 237.5 sq ch | 240 sq ch | 242.5 sq ch | 245 sq ch | 247.5 sq ch | 250 sq ch |
A rood /ˈruːd/ is an historic English and international inch-pound measure of area, as well as an archaic English measure of length.
| 1 roods = 2.5 square chains (international) | 6 roods = 15 square chains (international) |
| 2 roods = 5 square chains (international) | 7 roods = 17.5 square chains (international) |
| 3 roods = 7.5 square chains (international) | 8 roods = 20 square chains (international) |
| 4 roods = 10 square chains (international) | 9 roods = 22.5 square chains (international) |
| 5 roods = 12.5 square chains (international) | 10 roods = 25 square chains (international) |
square chain is a unit of area.
| 1 square chains (international) = 0.4 roods | 6 square chains (international) = 2.4 roods |
| 2 square chains (international) = 0.8 roods | 7 square chains (international) = 2.8 roods |
| 3 square chains (international) = 1.2 roods | 8 square chains (international) = 3.2 roods |
| 4 square chains (international) = 1.6 roods | 9 square chains (international) = 3.6 roods |
| 5 square chains (international) = 2 roods | 10 square chains (international) = 4 roods |
| 1 roods = 2.5 square chains (international) |
| 1 square chains (international) = 0.4 roods |