| square chain (international) | 1 sq ch | 2 sq ch | 3 sq ch | 4 sq ch | 5 sq ch | 6 sq ch | 7 sq ch | 8 sq ch | 9 sq ch | 10 sq ch | 11 sq ch | 12 sq ch | 13 sq ch | 14 sq ch | 15 sq ch | 16 sq ch | 17 sq ch | 18 sq ch | 19 sq ch | 20 sq ch | 21 sq ch | 22 sq ch | 23 sq ch | 24 sq ch | 25 sq ch | 26 sq ch | 27 sq ch | 28 sq ch | 29 sq ch | 30 sq ch | 31 sq ch | 32 sq ch | 33 sq ch | 34 sq ch | 35 sq ch | 36 sq ch | 37 sq ch | 38 sq ch | 39 sq ch | 40 sq ch | 41 sq ch | 42 sq ch | 43 sq ch | 44 sq ch | 45 sq ch | 46 sq ch | 47 sq ch | 48 sq ch | 49 sq ch | 50 sq ch | 51 sq ch | 52 sq ch | 53 sq ch | 54 sq ch | 55 sq ch | 56 sq ch | 57 sq ch | 58 sq ch | 59 sq ch | 60 sq ch | 61 sq ch | 62 sq ch | 63 sq ch | 64 sq ch | 65 sq ch | 66 sq ch | 67 sq ch | 68 sq ch | 69 sq ch | 70 sq ch | 71 sq ch | 72 sq ch | 73 sq ch | 74 sq ch | 75 sq ch | 76 sq ch | 77 sq ch | 78 sq ch | 79 sq ch | 80 sq ch | 81 sq ch | 82 sq ch | 83 sq ch | 84 sq ch | 85 sq ch | 86 sq ch | 87 sq ch | 88 sq ch | 89 sq ch | 90 sq ch | 91 sq ch | 92 sq ch | 93 sq ch | 94 sq ch | 95 sq ch | 96 sq ch | 97 sq ch | 98 sq ch | 99 sq ch | 100 sq ch |
| rood | 0.4 ro | 0.8 ro | 1.2 ro | 1.6 ro | 2 ro | 2.4 ro | 2.8 ro | 3.2 ro | 3.6 ro | 4 ro | 4.4 ro | 4.8 ro | 5.2 ro | 5.6 ro | 6 ro | 6.4 ro | 6.8 ro | 7.2 ro | 7.6 ro | 8 ro | 8.4 ro | 8.8 ro | 9.2 ro | 9.6 ro | 10 ro | 10.4 ro | 10.8 ro | 11.2 ro | 11.6 ro | 12 ro | 12.4 ro | 12.8 ro | 13.2 ro | 13.6 ro | 14 ro | 14.4 ro | 14.8 ro | 15.2 ro | 15.6 ro | 16 ro | 16.4 ro | 16.8 ro | 17.2 ro | 17.6 ro | 18 ro | 18.4 ro | 18.8 ro | 19.2 ro | 19.6 ro | 20 ro | 20.4 ro | 20.8 ro | 21.2 ro | 21.6 ro | 22 ro | 22.4 ro | 22.8 ro | 23.2 ro | 23.6 ro | 24 ro | 24.4 ro | 24.8 ro | 25.2 ro | 25.6 ro | 26 ro | 26.4 ro | 26.8 ro | 27.2 ro | 27.6 ro | 28 ro | 28.4 ro | 28.8 ro | 29.2 ro | 29.6 ro | 30 ro | 30.4 ro | 30.8 ro | 31.2 ro | 31.6 ro | 32 ro | 32.4 ro | 32.8 ro | 33.2 ro | 33.6 ro | 34 ro | 34.4 ro | 34.8 ro | 35.2 ro | 35.6 ro | 36 ro | 36.4 ro | 36.8 ro | 37.2 ro | 37.6 ro | 38 ro | 38.4 ro | 38.8 ro | 39.2 ro | 39.6 ro | 40 ro |
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 |
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) |
| 1 square chains (international) = 0.4 roods |
| 1 roods = 2.5 square chains (international) |