| sextant | 1 " | 2 " | 3 " | 4 " | 5 " | 6 " | 7 " | 8 " | 9 " | 10 " | 11 " | 12 " | 13 " | 14 " | 15 " | 16 " | 17 " | 18 " | 19 " | 20 " | 21 " | 22 " | 23 " | 24 " | 25 " | 26 " | 27 " | 28 " | 29 " | 30 " | 31 " | 32 " | 33 " | 34 " | 35 " | 36 " | 37 " | 38 " | 39 " | 40 " | 41 " | 42 " | 43 " | 44 " | 45 " | 46 " | 47 " | 48 " | 49 " | 50 " | 51 " | 52 " | 53 " | 54 " | 55 " | 56 " | 57 " | 58 " | 59 " | 60 " | 61 " | 62 " | 63 " | 64 " | 65 " | 66 " | 67 " | 68 " | 69 " | 70 " | 71 " | 72 " | 73 " | 74 " | 75 " | 76 " | 77 " | 78 " | 79 " | 80 " | 81 " | 82 " | 83 " | 84 " | 85 " | 86 " | 87 " | 88 " | 89 " | 90 " | 91 " | 92 " | 93 " | 94 " | 95 " | 96 " | 97 " | 98 " | 99 " | 100 " |
| twelfth circle | 2 1/12 circle | 4 1/12 circle | 6 1/12 circle | 8 1/12 circle | 10 1/12 circle | 12 1/12 circle | 14 1/12 circle | 16 1/12 circle | 18 1/12 circle | 20 1/12 circle | 22 1/12 circle | 24 1/12 circle | 26 1/12 circle | 28 1/12 circle | 30 1/12 circle | 32 1/12 circle | 34 1/12 circle | 36 1/12 circle | 38 1/12 circle | 40 1/12 circle | 42 1/12 circle | 44 1/12 circle | 46 1/12 circle | 48 1/12 circle | 50 1/12 circle | 52 1/12 circle | 54 1/12 circle | 56 1/12 circle | 58 1/12 circle | 60 1/12 circle | 62 1/12 circle | 64 1/12 circle | 66 1/12 circle | 68 1/12 circle | 70 1/12 circle | 72 1/12 circle | 74 1/12 circle | 76 1/12 circle | 78 1/12 circle | 80 1/12 circle | 82 1/12 circle | 84 1/12 circle | 86 1/12 circle | 88 1/12 circle | 90 1/12 circle | 92 1/12 circle | 94 1/12 circle | 96 1/12 circle | 98 1/12 circle | 100 1/12 circle | 102 1/12 circle | 104 1/12 circle | 106 1/12 circle | 108 1/12 circle | 110 1/12 circle | 112 1/12 circle | 114 1/12 circle | 116 1/12 circle | 118 1/12 circle | 120 1/12 circle | 122 1/12 circle | 124 1/12 circle | 126 1/12 circle | 128 1/12 circle | 130 1/12 circle | 132 1/12 circle | 134 1/12 circle | 136 1/12 circle | 138 1/12 circle | 140 1/12 circle | 142 1/12 circle | 144 1/12 circle | 146 1/12 circle | 148 1/12 circle | 150 1/12 circle | 152 1/12 circle | 154 1/12 circle | 156 1/12 circle | 158 1/12 circle | 160 1/12 circle | 162 1/12 circle | 164 1/12 circle | 166 1/12 circle | 168 1/12 circle | 170 1/12 circle | 172 1/12 circle | 174 1/12 circle | 176 1/12 circle | 178 1/12 circle | 180 1/12 circle | 182 1/12 circle | 184 1/12 circle | 186 1/12 circle | 188 1/12 circle | 190 1/12 circle | 192 1/12 circle | 194 1/12 circle | 196 1/12 circle | 198 1/12 circle | 200 1/12 circle |
sextant is the unit of plane angle, equals to 60°.
| 1 sextants ≈ 2 twelfth circles | 6 sextants ≈ 12 twelfth circles |
| 2 sextants ≈ 4 twelfth circles | 7 sextants ≈ 14 twelfth circles |
| 3 sextants ≈ 6 twelfth circles | 8 sextants ≈ 16 twelfth circles |
| 4 sextants ≈ 8 twelfth circles | 9 sextants ≈ 18 twelfth circles |
| 5 sextants ≈ 10 twelfth circles | 10 sextants ≈ 20 twelfth circles |
1/12 circle or twelfth circle is equal to 360°/12 = 30°. Plural name is twelfth circles.
| 1 twelfth circles ≈ 0.5 sextants | 6 twelfth circles ≈ 3 sextants |
| 2 twelfth circles ≈ 1 sextants | 7 twelfth circles ≈ 3.5 sextants |
| 3 twelfth circles ≈ 1.5 sextants | 8 twelfth circles ≈ 4 sextants |
| 4 twelfth circles ≈ 2 sextants | 9 twelfth circles ≈ 4.5 sextants |
| 5 twelfth circles ≈ 2.5 sextants | 10 twelfth circles ≈ 5 sextants |
| 1 sextants ≈ 2 twelfth circles |
| 1 twelfth circles ≈ 0.5 sextants |