light-second | 1 light-second | 2 light-second | 3 light-second | 4 light-second | 5 light-second | 6 light-second | 7 light-second | 8 light-second | 9 light-second | 10 light-second | 11 light-second | 12 light-second | 13 light-second | 14 light-second | 15 light-second | 16 light-second | 17 light-second | 18 light-second | 19 light-second | 20 light-second | 21 light-second | 22 light-second | 23 light-second | 24 light-second | 25 light-second | 26 light-second | 27 light-second | 28 light-second | 29 light-second | 30 light-second | 31 light-second | 32 light-second | 33 light-second | 34 light-second | 35 light-second | 36 light-second | 37 light-second | 38 light-second | 39 light-second | 40 light-second | 41 light-second | 42 light-second | 43 light-second | 44 light-second | 45 light-second | 46 light-second | 47 light-second | 48 light-second | 49 light-second | 50 light-second | 51 light-second | 52 light-second | 53 light-second | 54 light-second | 55 light-second | 56 light-second | 57 light-second | 58 light-second | 59 light-second | 60 light-second | 61 light-second | 62 light-second | 63 light-second | 64 light-second | 65 light-second | 66 light-second | 67 light-second | 68 light-second | 69 light-second | 70 light-second | 71 light-second | 72 light-second | 73 light-second | 74 light-second | 75 light-second | 76 light-second | 77 light-second | 78 light-second | 79 light-second | 80 light-second | 81 light-second | 82 light-second | 83 light-second | 84 light-second | 85 light-second | 86 light-second | 87 light-second | 88 light-second | 89 light-second | 90 light-second | 91 light-second | 92 light-second | 93 light-second | 94 light-second | 95 light-second | 96 light-second | 97 light-second | 98 light-second | 99 light-second | 100 light-second |
foot, metric (long) | 899 377 374 lmf | 1 798 754 748 lmf | 2 698 132 122 lmf | 3 597 509 496 lmf | 4 496 886 870 lmf | 5 396 264 244 lmf | 6 295 641 618 lmf | 7 195 018 992 lmf | 8 094 396 366 lmf | 8 993 773 740 lmf | 9 893 151 114 lmf | 10 792 528 488 lmf | 11 691 905 862 lmf | 12 591 283 236 lmf | 13 490 660 610 lmf | 14 390 037 984 lmf | 15 289 415 358 lmf | 16 188 792 732 lmf | 17 088 170 106 lmf | 17 987 547 480 lmf | 18 886 924 854 lmf | 19 786 302 228 lmf | 20 685 679 602 lmf | 21 585 056 976 lmf | 22 484 434 350 lmf | 23 383 811 724 lmf | 24 283 189 098 lmf | 25 182 566 472 lmf | 26 081 943 846 lmf | 26 981 321 220 lmf | 27 880 698 594 lmf | 28 780 075 968 lmf | 29 679 453 342 lmf | 30 578 830 716 lmf | 31 478 208 090 lmf | 32 377 585 464 lmf | 33 276 962 838 lmf | 34 176 340 212 lmf | 35 075 717 586 lmf | 35 975 094 960 lmf | 36 874 472 334 lmf | 37 773 849 708 lmf | 38 673 227 082 lmf | 39 572 604 456 lmf | 40 471 981 830 lmf | 41 371 359 204 lmf | 42 270 736 578 lmf | 43 170 113 952 lmf | 44 069 491 326 lmf | 44 968 868 700 lmf | 45 868 246 074 lmf | 46 767 623 448 lmf | 47 667 000 822 lmf | 48 566 378 196 lmf | 49 465 755 570 lmf | 50 365 132 944 lmf | 51 264 510 318 lmf | 52 163 887 692 lmf | 53 063 265 066 lmf | 53 962 642 440 lmf | 54 862 019 814 lmf | 55 761 397 188 lmf | 56 660 774 562 lmf | 57 560 151 936 lmf | 58 459 529 310 lmf | 59 358 906 684 lmf | 60 258 284 058 lmf | 61 157 661 432 lmf | 62 057 038 806 lmf | 62 956 416 180 lmf | 63 855 793 554 lmf | 64 755 170 928 lmf | 65 654 548 302 lmf | 66 553 925 676 lmf | 67 453 303 050 lmf | 68 352 680 424 lmf | 69 252 057 798 lmf | 70 151 435 172 lmf | 71 050 812 546 lmf | 71 950 189 920 lmf | 72 849 567 294 lmf | 73 748 944 668 lmf | 74 648 322 042 lmf | 75 547 699 416 lmf | 76 447 076 790 lmf | 77 346 454 164 lmf | 78 245 831 538 lmf | 79 145 208 912 lmf | 80 044 586 286 lmf | 80 943 963 660 lmf | 81 843 341 034 lmf | 82 742 718 408 lmf | 83 642 095 782 lmf | 84 541 473 156 lmf | 85 440 850 530 lmf | 86 340 227 904 lmf | 87 239 605 278 lmf | 88 138 982 652 lmf | 89 038 360 026 lmf | 89 937 737 400 lmf |
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in onesecond, and is equal to exactly 299792458 metres (just over 186282 miles).
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
light-second | ≡ Distance light travels in one second in vacuum | ≡ 299 792 458 m | Science - Astronomy (Length) |
light-seconds | feet, metric (long) | light-seconds | feet, metric (long) |
---|---|---|---|
1 | = 899377374 | 4 | = 3597509496 |
1.5 | = 1349066061 | 4.5 | = 4047198183 |
2 | = 1798754748 | 5 | = 4496886870 |
2.5 | = 2248443435 | 5.5 | = 4946575557 |
3 | = 2698132122 | 6 | = 5396264244 |
A foot, metric (long) is the unit of length.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
foot, metric (long) | lmf | ≡ 1⁄3 m | ≈ 0.3 m | Metric system SI |
feet, metric (long) | light-seconds | feet, metric (long) | light-seconds |
---|---|---|---|
1 | = 1.1118803173272E-9 | 4 | = 4.4475212693087E-9 |
1.5 | = 1.6678204759908E-9 | 4.5 | = 5.0034614279723E-9 |
2 | = 2.2237606346543E-9 | 5 | = 5.5594015866359E-9 |
2.5 | = 2.7797007933179E-9 | 5.5 | = 6.1153417452995E-9 |
3 | = 3.3356409519815E-9 | 6 | = 6.671281903963E-9 |
light-seconds | feet, metric (long) |
---|---|
1 | = 899 377 374 |
1.1118803173272 × 10-9 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |