| eighth circle | 1 1/8 circle | 2 1/8 circle | 3 1/8 circle | 4 1/8 circle | 5 1/8 circle | 6 1/8 circle | 7 1/8 circle | 8 1/8 circle | 9 1/8 circle | 10 1/8 circle | 11 1/8 circle | 12 1/8 circle | 13 1/8 circle | 14 1/8 circle | 15 1/8 circle | 16 1/8 circle | 17 1/8 circle | 18 1/8 circle | 19 1/8 circle | 20 1/8 circle | 21 1/8 circle | 22 1/8 circle | 23 1/8 circle | 24 1/8 circle | 25 1/8 circle | 26 1/8 circle | 27 1/8 circle | 28 1/8 circle | 29 1/8 circle | 30 1/8 circle | 31 1/8 circle | 32 1/8 circle | 33 1/8 circle | 34 1/8 circle | 35 1/8 circle | 36 1/8 circle | 37 1/8 circle | 38 1/8 circle | 39 1/8 circle | 40 1/8 circle | 41 1/8 circle | 42 1/8 circle | 43 1/8 circle | 44 1/8 circle | 45 1/8 circle | 46 1/8 circle | 47 1/8 circle | 48 1/8 circle | 49 1/8 circle | 50 1/8 circle | 51 1/8 circle | 52 1/8 circle | 53 1/8 circle | 54 1/8 circle | 55 1/8 circle | 56 1/8 circle | 57 1/8 circle | 58 1/8 circle | 59 1/8 circle | 60 1/8 circle | 61 1/8 circle | 62 1/8 circle | 63 1/8 circle | 64 1/8 circle | 65 1/8 circle | 66 1/8 circle | 67 1/8 circle | 68 1/8 circle | 69 1/8 circle | 70 1/8 circle | 71 1/8 circle | 72 1/8 circle | 73 1/8 circle | 74 1/8 circle | 75 1/8 circle | 76 1/8 circle | 77 1/8 circle | 78 1/8 circle | 79 1/8 circle | 80 1/8 circle | 81 1/8 circle | 82 1/8 circle | 83 1/8 circle | 84 1/8 circle | 85 1/8 circle | 86 1/8 circle | 87 1/8 circle | 88 1/8 circle | 89 1/8 circle | 90 1/8 circle | 91 1/8 circle | 92 1/8 circle | 93 1/8 circle | 94 1/8 circle | 95 1/8 circle | 96 1/8 circle | 97 1/8 circle | 98 1/8 circle | 99 1/8 circle | 100 1/8 circle |
| radian | 0.7853982 rad | 1.5707963 rad | 2.3561945 rad | 3.1415926 rad | 3.9269908 rad | 4.7123889 rad | 5.4977871 rad | 6.2831852 rad | 7.0685834 rad | 7.8539815 rad | 8.6393797 rad | 9.4247778 rad | 10.2101760 rad | 10.9955741 rad | 11.7809723 rad | 12.5663704 rad | 13.3517686 rad | 14.1371667 rad | 14.9225649 rad | 15.707963 rad | 16.4933612 rad | 17.2787593 rad | 18.0641575 rad | 18.8495556 rad | 19.6349538 rad | 20.4203519 rad | 21.2057501 rad | 21.9911482 rad | 22.7765464 rad | 23.5619445 rad | 24.3473427 rad | 25.1327408 rad | 25.9181390 rad | 26.7035371 rad | 27.4889353 rad | 28.2743334 rad | 29.0597316 rad | 29.8451297 rad | 30.6305279 rad | 31.415926 rad | 32.2013242 rad | 32.9867223 rad | 33.7721205 rad | 34.5575186 rad | 35.3429168 rad | 36.1283149 rad | 36.9137131 rad | 37.6991112 rad | 38.4845094 rad | 39.2699075 rad | 40.0553057 rad | 40.8407038 rad | 41.6261020 rad | 42.4115001 rad | 43.1968983 rad | 43.9822964 rad | 44.7676946 rad | 45.5530927 rad | 46.3384909 rad | 47.123889 rad | 47.9092872 rad | 48.6946853 rad | 49.4800835 rad | 50.2654816 rad | 51.0508798 rad | 51.8362779 rad | 52.6216761 rad | 53.4070742 rad | 54.1924724 rad | 54.9778705 rad | 55.7632687 rad | 56.5486668 rad | 57.3340650 rad | 58.1194631 rad | 58.9048613 rad | 59.6902594 rad | 60.4756576 rad | 61.2610557 rad | 62.0464539 rad | 62.831852 rad | 63.6172502 rad | 64.4026483 rad | 65.1880465 rad | 65.9734446 rad | 66.7588428 rad | 67.5442409 rad | 68.3296391 rad | 69.1150372 rad | 69.9004354 rad | 70.6858335 rad | 71.4712317 rad | 72.2566298 rad | 73.0420280 rad | 73.8274261 rad | 74.6128243 rad | 75.3982224 rad | 76.1836206 rad | 76.9690187 rad | 77.7544169 rad | 78.539815 rad |
1/8 circle or eighth circle is equal to 360/8 = 45°. Plural name is eighth circles.
| 1 eighth circles = 0.78539815 radians | 6 eighth circles = 4.7123889 radians |
| 2 eighth circles = 1.5707963 radians | 7 eighth circles = 5.49778705 radians |
| 3 eighth circles = 2.35619445 radians | 8 eighth circles = 6.2831852 radians |
| 4 eighth circles = 3.1415926 radians | 9 eighth circles = 7.06858335 radians |
| 5 eighth circles = 3.92699075 radians | 10 eighth circles = 7.8539815 radians |
The radian is the standard unit of angular measure, used in many areas of mathematics. The length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends; one radian is just under 57.3 degrees.
| 1 radians = 1.2732395664543 eighth circles | 6 radians = 7.6394373987257 eighth circles |
| 2 radians = 2.5464791329086 eighth circles | 7 radians = 8.91267696518 eighth circles |
| 3 radians = 3.8197186993629 eighth circles | 8 radians = 10.185916531634 eighth circles |
| 4 radians = 5.0929582658172 eighth circles | 9 radians = 11.459156098089 eighth circles |
| 5 radians = 6.3661978322714 eighth circles | 10 radians = 12.732395664543 eighth circles |
| 1 eighth circles = 0.7853982 radians |
| 1 radians = 1.2732396 eighth circles |