| spat | 1 S | 2 S | 3 S | 4 S | 5 S | 6 S | 7 S | 8 S | 9 S | 10 S | 11 S | 12 S | 13 S | 14 S | 15 S | 16 S | 17 S | 18 S | 19 S | 20 S | 21 S | 22 S | 23 S | 24 S | 25 S | 26 S | 27 S | 28 S | 29 S | 30 S | 31 S | 32 S | 33 S | 34 S | 35 S | 36 S | 37 S | 38 S | 39 S | 40 S | 41 S | 42 S | 43 S | 44 S | 45 S | 46 S | 47 S | 48 S | 49 S | 50 S | 51 S | 52 S | 53 S | 54 S | 55 S | 56 S | 57 S | 58 S | 59 S | 60 S | 61 S | 62 S | 63 S | 64 S | 65 S | 66 S | 67 S | 68 S | 69 S | 70 S | 71 S | 72 S | 73 S | 74 S | 75 S | 76 S | 77 S | 78 S | 79 S | 80 S | 81 S | 82 S | 83 S | 84 S | 85 S | 86 S | 87 S | 88 S | 89 S | 90 S | 91 S | 92 S | 93 S | 94 S | 95 S | 96 S | 97 S | 98 S | 99 S | 100 S |
| fathom | 546,806,649,168.85 ftm | 1,093,613,298,337.7 ftm | 1,640,419,947,506.6 ftm | 2,187,226,596,675.4 ftm | 2,734,033,245,844.3 ftm | 3,280,839,895,013.1 ftm | 3 827 646 544 182 ftm | 4,374,453,193,350.8 ftm | 4,921,259,842,519.7 ftm | 5,468,066,491,688.5 ftm | 6,014,873,140,857.4 ftm | 6,561,679,790,026.2 ftm | 7,108,486,439,195.1 ftm | 7 655 293 088 364 ftm | 8,202,099,737,532.8 ftm | 8,748,906,386,701.7 ftm | 9,295,713,035,870.5 ftm | 9,842,519,685,039.4 ftm | 10 389 326 334 208 ftm | 10 936 132 983 377 ftm | 11 482 939 632 546 ftm | 12 029 746 281 715 ftm | 12 576 552 930 884 ftm | 13 123 359 580 052 ftm | 13 670 166 229 221 ftm | 14 216 972 878 390 ftm | 14 763 779 527 559 ftm | 15 310 586 176 728 ftm | 15 857 392 825 897 ftm | 16 404 199 475 066 ftm | 16 951 006 124 234 ftm | 17 497 812 773 403 ftm | 18 044 619 422 572 ftm | 18 591 426 071 741 ftm | 19 138 232 720 910 ftm | 19 685 039 370 079 ftm | 20 231 846 019 248 ftm | 20 778 652 668 416 ftm | 21 325 459 317 585 ftm | 21 872 265 966 754 ftm | 22 419 072 615 923 ftm | 22 965 879 265 092 ftm | 23 512 685 914 261 ftm | 24 059 492 563 430 ftm | 24 606 299 212 598 ftm | 25 153 105 861 767 ftm | 25 699 912 510 936 ftm | 26 246 719 160 105 ftm | 26 793 525 809 274 ftm | 27 340 332 458 443 ftm | 27 887 139 107 612 ftm | 28 433 945 756 780 ftm | 28 980 752 405 949 ftm | 29 527 559 055 118 ftm | 30 074 365 704 287 ftm | 30 621 172 353 456 ftm | 31 167 979 002 625 ftm | 31 714 785 651 794 ftm | 32 261 592 300 962 ftm | 32 808 398 950 131 ftm | 33 355 205 599 300 ftm | 33 902 012 248 469 ftm | 34 448 818 897 638 ftm | 34 995 625 546 807 ftm | 35 542 432 195 976 ftm | 36 089 238 845 144 ftm | 36 636 045 494 313 ftm | 37 182 852 143 482 ftm | 37 729 658 792 651 ftm | 38 276 465 441 820 ftm | 38 823 272 090 989 ftm | 39 370 078 740 157 ftm | 39 916 885 389 326 ftm | 40 463 692 038 495 ftm | 41 010 498 687 664 ftm | 41 557 305 336 833 ftm | 42 104 111 986 002 ftm | 42 650 918 635 171 ftm | 43 197 725 284 339 ftm | 43 744 531 933 508 ftm | 44 291 338 582 677 ftm | 44 838 145 231 846 ftm | 45 384 951 881 015 ftm | 45 931 758 530 184 ftm | 46 478 565 179 353 ftm | 47 025 371 828 521 ftm | 47 572 178 477 690 ftm | 48 118 985 126 859 ftm | 48 665 791 776 028 ftm | 49 212 598 425 197 ftm | 49 759 405 074 366 ftm | 50 306 211 723 535 ftm | 50 853 018 372 703 ftm | 51 399 825 021 872 ftm | 51 946 631 671 041 ftm | 52 493 438 320 210 ftm | 53 040 244 969 379 ftm | 53 587 051 618 548 ftm | 54 133 858 267 717 ftm | 54 680 664 916 885 ftm |
The spat (symbol S) is also an obsolete unit of distance used in astronomy. It is equal to 1000000000 kilometres (1 Tm or 1012 m). It is about 6.6846 astronomical units (AU), 1.057×10−4 light-years or3.240×10−5 parsecs.
| 1 spats = 546806649168.85 fathoms | 4 spats = 2187226596675.4 fathoms |
| 1.5 spats = 820209973753.28 fathoms | 4.5 spats = 2460629921259.8 fathoms |
| 2 spats = 1093613298337.7 fathoms | 5 spats = 2734033245844.3 fathoms |
| 2.5 spats = 1367016622922.1 fathoms | 5.5 spats = 3007436570428.7 fathoms |
| 3 spats = 1640419947506.6 fathoms | 6 spats = 3280839895013.1 fathoms |
A fathom is a unit of length in the imperial and the U.S. customary systems equal to 6 feet (1.8288 metres), used especially for measuring the depth of water.
There are two yards (6 feet) in an imperial fathom. Originally the span of a man's outstretched arms, the size of a fathom has varied slightly depending on whether it was defined as a thousandth of an (Admiralty) nautical mile or as a multiple of the imperial yard. Formerly, the term was used for any of several units of length varying around 5–5 1⁄2 feet.
| 1 fathoms = 1.8288E-12 spats | 4 fathoms = 7.3152E-12 spats |
| 1.5 fathoms = 2.7432E-12 spats | 4.5 fathoms = 8.2296E-12 spats |
| 2 fathoms = 3.6576E-12 spats | 5 fathoms = 9.144E-12 spats |
| 2.5 fathoms = 4.572E-12 spats | 5.5 fathoms = 1.00584E-11 spats |
| 3 fathoms = 5.4864E-12 spats | 6 fathoms = 1.09728E-11 spats |
| 1 spats = 546,806,649,168.85 fathoms |
| 1 fathoms = 1.8288 × 10-12 spats |