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