| quarter circle | 1 1/4 circle | 2 1/4 circle | 3 1/4 circle | 4 1/4 circle | 5 1/4 circle | 6 1/4 circle | 7 1/4 circle | 8 1/4 circle | 9 1/4 circle | 10 1/4 circle | 11 1/4 circle | 12 1/4 circle | 13 1/4 circle | 14 1/4 circle | 15 1/4 circle | 16 1/4 circle | 17 1/4 circle | 18 1/4 circle | 19 1/4 circle | 20 1/4 circle | 21 1/4 circle | 22 1/4 circle | 23 1/4 circle | 24 1/4 circle | 25 1/4 circle | 26 1/4 circle | 27 1/4 circle | 28 1/4 circle | 29 1/4 circle | 30 1/4 circle | 31 1/4 circle | 32 1/4 circle | 33 1/4 circle | 34 1/4 circle | 35 1/4 circle | 36 1/4 circle | 37 1/4 circle | 38 1/4 circle | 39 1/4 circle | 40 1/4 circle | 41 1/4 circle | 42 1/4 circle | 43 1/4 circle | 44 1/4 circle | 45 1/4 circle | 46 1/4 circle | 47 1/4 circle | 48 1/4 circle | 49 1/4 circle | 50 1/4 circle | 51 1/4 circle | 52 1/4 circle | 53 1/4 circle | 54 1/4 circle | 55 1/4 circle | 56 1/4 circle | 57 1/4 circle | 58 1/4 circle | 59 1/4 circle | 60 1/4 circle | 61 1/4 circle | 62 1/4 circle | 63 1/4 circle | 64 1/4 circle | 65 1/4 circle | 66 1/4 circle | 67 1/4 circle | 68 1/4 circle | 69 1/4 circle | 70 1/4 circle | 71 1/4 circle | 72 1/4 circle | 73 1/4 circle | 74 1/4 circle | 75 1/4 circle | 76 1/4 circle | 77 1/4 circle | 78 1/4 circle | 79 1/4 circle | 80 1/4 circle | 81 1/4 circle | 82 1/4 circle | 83 1/4 circle | 84 1/4 circle | 85 1/4 circle | 86 1/4 circle | 87 1/4 circle | 88 1/4 circle | 89 1/4 circle | 90 1/4 circle | 91 1/4 circle | 92 1/4 circle | 93 1/4 circle | 94 1/4 circle | 95 1/4 circle | 96 1/4 circle | 97 1/4 circle | 98 1/4 circle | 99 1/4 circle | 100 1/4 circle |
| arcsecond | 324 000 " | 648 000 " | 972 000 " | 1 296 000 " | 1 620 000 " | 1 944 000 " | 2 268 000 " | 2 592 000 " | 2 916 000 " | 3 240 000 " | 3 564 000 " | 3 888 000 " | 4 212 000 " | 4 536 000 " | 4 860 000 " | 5 184 000 " | 5 508 000 " | 5 832 000 " | 6 156 000 " | 6 480 000 " | 6 804 000 " | 7 128 000 " | 7 452 000 " | 7 776 000 " | 8 100 000 " | 8 424 000 " | 8 748 000 " | 9 072 000 " | 9 396 000 " | 9 720 000 " | 10 044 000 " | 10 368 000 " | 10 692 000 " | 11 016 000 " | 11 340 000 " | 11 664 000 " | 11 988 000 " | 12 312 000 " | 12 636 000 " | 12 960 000 " | 13 284 000 " | 13 608 000 " | 13 932 000 " | 14 256 000 " | 14 580 000 " | 14 904 000 " | 15 228 000 " | 15 552 000 " | 15 876 000 " | 16 200 000 " | 16 524 000 " | 16 848 000 " | 17 172 000 " | 17 496 000 " | 17 820 000 " | 18 144 000 " | 18 468 000 " | 18 792 000 " | 19 116 000 " | 19 440 000 " | 19 764 000 " | 20 088 000 " | 20 412 000 " | 20 736 000 " | 21 060 000 " | 21 384 000 " | 21 708 000 " | 22 032 000 " | 22 356 000 " | 22 680 000 " | 23 004 000 " | 23 328 000 " | 23 652 000 " | 23 976 000 " | 24 300 000 " | 24 624 000 " | 24 948 000 " | 25 272 000 " | 25 596 000 " | 25 920 000 " | 26 244 000 " | 26 568 000 " | 26 892 000 " | 27 216 000 " | 27 540 000 " | 27 864 000 " | 28 188 000 " | 28 512 000 " | 28 836 000 " | 29 160 000 " | 29 484 000 " | 29 808 000 " | 30 132 000 " | 30 456 000 " | 30 780 000 " | 31 104 000 " | 31 428 000 " | 31 752 000 " | 32 076 000 " | 32 400 000 " |
1/4 circle or quarter circle is equal to 360°/4 = 90°. Plural name is quarter circles.
| 1 quarter circles ≈ 324000 arcseconds | 6 quarter circles ≈ 1944000 arcseconds |
| 2 quarter circles ≈ 648000 arcseconds | 7 quarter circles ≈ 2268000 arcseconds |
| 3 quarter circles ≈ 972000 arcseconds | 8 quarter circles ≈ 2592000 arcseconds |
| 4 quarter circles ≈ 1296000 arcseconds | 9 quarter circles ≈ 2916000 arcseconds |
| 5 quarter circles ≈ 1620000 arcseconds | 10 quarter circles ≈ 3240000 arcseconds |
A second of arc, arcsecond (arcsec), arc second, or second arc is a unit of angular measurement equal to 1/3600 of one degree.
| 1 arcseconds ≈ 3.0864197530864E-6 quarter circles | 6 arcseconds ≈ 1.8518518518519E-5 quarter circles |
| 2 arcseconds ≈ 6.1728395061728E-6 quarter circles | 7 arcseconds ≈ 2.1604938271605E-5 quarter circles |
| 3 arcseconds ≈ 9.2592592592593E-6 quarter circles | 8 arcseconds ≈ 2.4691358024691E-5 quarter circles |
| 4 arcseconds ≈ 1.2345679012346E-5 quarter circles | 9 arcseconds ≈ 2.7777777777778E-5 quarter circles |
| 5 arcseconds ≈ 1.5432098765432E-5 quarter circles | 10 arcseconds ≈ 3.0864197530864E-5 quarter circles |
| 1 quarter circles ≈ 324 000 arcseconds |
| 1 arcseconds ≈ 3.0864197530864 × 10-6 quarter circles |