| helf circle | 1 1/2 circle | 2 1/2 circle | 3 1/2 circle | 4 1/2 circle | 5 1/2 circle | 6 1/2 circle | 7 1/2 circle | 8 1/2 circle | 9 1/2 circle | 10 1/2 circle | 11 1/2 circle | 12 1/2 circle | 13 1/2 circle | 14 1/2 circle | 15 1/2 circle | 16 1/2 circle | 17 1/2 circle | 18 1/2 circle | 19 1/2 circle | 20 1/2 circle | 21 1/2 circle | 22 1/2 circle | 23 1/2 circle | 24 1/2 circle | 25 1/2 circle | 26 1/2 circle | 27 1/2 circle | 28 1/2 circle | 29 1/2 circle | 30 1/2 circle | 31 1/2 circle | 32 1/2 circle | 33 1/2 circle | 34 1/2 circle | 35 1/2 circle | 36 1/2 circle | 37 1/2 circle | 38 1/2 circle | 39 1/2 circle | 40 1/2 circle | 41 1/2 circle | 42 1/2 circle | 43 1/2 circle | 44 1/2 circle | 45 1/2 circle | 46 1/2 circle | 47 1/2 circle | 48 1/2 circle | 49 1/2 circle | 50 1/2 circle | 51 1/2 circle | 52 1/2 circle | 53 1/2 circle | 54 1/2 circle | 55 1/2 circle | 56 1/2 circle | 57 1/2 circle | 58 1/2 circle | 59 1/2 circle | 60 1/2 circle | 61 1/2 circle | 62 1/2 circle | 63 1/2 circle | 64 1/2 circle | 65 1/2 circle | 66 1/2 circle | 67 1/2 circle | 68 1/2 circle | 69 1/2 circle | 70 1/2 circle | 71 1/2 circle | 72 1/2 circle | 73 1/2 circle | 74 1/2 circle | 75 1/2 circle | 76 1/2 circle | 77 1/2 circle | 78 1/2 circle | 79 1/2 circle | 80 1/2 circle | 81 1/2 circle | 82 1/2 circle | 83 1/2 circle | 84 1/2 circle | 85 1/2 circle | 86 1/2 circle | 87 1/2 circle | 88 1/2 circle | 89 1/2 circle | 90 1/2 circle | 91 1/2 circle | 92 1/2 circle | 93 1/2 circle | 94 1/2 circle | 95 1/2 circle | 96 1/2 circle | 97 1/2 circle | 98 1/2 circle | 99 1/2 circle | 100 1/2 circle |
| eighth circle | 4 1/8 circle | 8 1/8 circle | 12 1/8 circle | 16 1/8 circle | 20 1/8 circle | 24 1/8 circle | 28 1/8 circle | 32 1/8 circle | 36 1/8 circle | 40 1/8 circle | 44 1/8 circle | 48 1/8 circle | 52 1/8 circle | 56 1/8 circle | 60 1/8 circle | 64 1/8 circle | 68 1/8 circle | 72 1/8 circle | 76 1/8 circle | 80 1/8 circle | 84 1/8 circle | 88 1/8 circle | 92 1/8 circle | 96 1/8 circle | 100 1/8 circle | 104 1/8 circle | 108 1/8 circle | 112 1/8 circle | 116 1/8 circle | 120 1/8 circle | 124 1/8 circle | 128 1/8 circle | 132 1/8 circle | 136 1/8 circle | 140 1/8 circle | 144 1/8 circle | 148 1/8 circle | 152 1/8 circle | 156 1/8 circle | 160 1/8 circle | 164 1/8 circle | 168 1/8 circle | 172 1/8 circle | 176 1/8 circle | 180 1/8 circle | 184 1/8 circle | 188 1/8 circle | 192 1/8 circle | 196 1/8 circle | 200 1/8 circle | 204 1/8 circle | 208 1/8 circle | 212 1/8 circle | 216 1/8 circle | 220 1/8 circle | 224 1/8 circle | 228 1/8 circle | 232 1/8 circle | 236 1/8 circle | 240 1/8 circle | 244 1/8 circle | 248 1/8 circle | 252 1/8 circle | 256 1/8 circle | 260 1/8 circle | 264 1/8 circle | 268 1/8 circle | 272 1/8 circle | 276 1/8 circle | 280 1/8 circle | 284 1/8 circle | 288 1/8 circle | 292 1/8 circle | 296 1/8 circle | 300 1/8 circle | 304 1/8 circle | 308 1/8 circle | 312 1/8 circle | 316 1/8 circle | 320 1/8 circle | 324 1/8 circle | 328 1/8 circle | 332 1/8 circle | 336 1/8 circle | 340 1/8 circle | 344 1/8 circle | 348 1/8 circle | 352 1/8 circle | 356 1/8 circle | 360 1/8 circle | 364 1/8 circle | 368 1/8 circle | 372 1/8 circle | 376 1/8 circle | 380 1/8 circle | 384 1/8 circle | 388 1/8 circle | 392 1/8 circle | 396 1/8 circle | 400 1/8 circle |
1/2 circle or half circle is equal to 360°/2 = 180°. Plural name is helf circles.
| 1 helf circles = 4 eighth circles | 6 helf circles = 24 eighth circles |
| 2 helf circles = 8 eighth circles | 7 helf circles = 28 eighth circles |
| 3 helf circles = 12 eighth circles | 8 helf circles = 32 eighth circles |
| 4 helf circles = 16 eighth circles | 9 helf circles = 36 eighth circles |
| 5 helf circles = 20 eighth circles | 10 helf circles = 40 eighth circles |
1/8 circle or eighth circle is equal to 360/8 = 45°. Plural name is eighth circles.
| 1 eighth circles = 0.25 helf circles | 6 eighth circles = 1.5 helf circles |
| 2 eighth circles = 0.5 helf circles | 7 eighth circles = 1.75 helf circles |
| 3 eighth circles = 0.75 helf circles | 8 eighth circles = 2 helf circles |
| 4 eighth circles = 1 helf circles | 9 eighth circles = 2.25 helf circles |
| 5 eighth circles = 1.25 helf circles | 10 eighth circles = 2.5 helf circles |
| 1 helf circles = 4 eighth circles |
| 1 eighth circles = 0.25 helf circles |