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 |
centimeter | 29 979 245 800 cm | 59 958 491 600 cm | 89 937 737 400 cm | 119 916 983 200 cm | 149 896 229 000 cm | 179 875 474 800 cm | 209 854 720 600 cm | 239 833 966 400 cm | 269 813 212 200 cm | 299 792 458 000 cm | 329 771 703 800 cm | 359 750 949 600 cm | 389 730 195 400 cm | 419 709 441 200 cm | 449 688 687 000 cm | 479 667 932 800 cm | 509 647 178 600 cm | 539 626 424 400 cm | 569 605 670 200 cm | 599 584 916 000 cm | 629 564 161 800 cm | 659 543 407 600 cm | 689 522 653 400 cm | 719 501 899 200 cm | 749 481 145 000 cm | 779 460 390 800 cm | 809 439 636 600 cm | 839 418 882 400 cm | 869 398 128 200 cm | 899 377 374 000 cm | 929 356 619 800 cm | 959 335 865 600 cm | 989 315 111 400 cm | 1 019 294 357 200 cm | 1 049 273 603 000 cm | 1 079 252 848 800 cm | 1 109 232 094 600 cm | 1 139 211 340 400 cm | 1 169 190 586 200 cm | 1 199 169 832 000 cm | 1 229 149 077 800 cm | 1 259 128 323 600 cm | 1 289 107 569 400 cm | 1 319 086 815 200 cm | 1 349 066 061 000 cm | 1 379 045 306 800 cm | 1 409 024 552 600 cm | 1 439 003 798 400 cm | 1 468 983 044 200 cm | 1 498 962 290 000 cm | 1 528 941 535 800 cm | 1 558 920 781 600 cm | 1 588 900 027 400 cm | 1 618 879 273 200 cm | 1 648 858 519 000 cm | 1 678 837 764 800 cm | 1 708 817 010 600 cm | 1 738 796 256 400 cm | 1 768 775 502 200 cm | 1 798 754 748 000 cm | 1 828 733 993 800 cm | 1 858 713 239 600 cm | 1 888 692 485 400 cm | 1 918 671 731 200 cm | 1 948 650 977 000 cm | 1 978 630 222 800 cm | 2 008 609 468 600 cm | 2 038 588 714 400 cm | 2 068 567 960 200 cm | 2 098 547 206 000 cm | 2 128 526 451 800 cm | 2 158 505 697 600 cm | 2 188 484 943 400 cm | 2 218 464 189 200 cm | 2 248 443 435 000 cm | 2 278 422 680 800 cm | 2 308 401 926 600 cm | 2 338 381 172 400 cm | 2 368 360 418 200 cm | 2 398 339 664 000 cm | 2 428 318 909 800 cm | 2 458 298 155 600 cm | 2 488 277 401 400 cm | 2 518 256 647 200 cm | 2 548 235 893 000 cm | 2 578 215 138 800 cm | 2 608 194 384 600 cm | 2 638 173 630 400 cm | 2 668 152 876 200 cm | 2 698 132 122 000 cm | 2 728 111 367 800 cm | 2 758 090 613 600 cm | 2 788 069 859 400 cm | 2 818 049 105 200 cm | 2 848 028 351 000 cm | 2 878 007 596 800 cm | 2 907 986 842 600 cm | 2 937 966 088 400 cm | 2 967 945 334 200 cm | 2 997 924 580 000 cm |
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 | centimeters | light-seconds | centimeters |
---|---|---|---|
1 | ≡ 29979245800 | 4 | ≡ 119916983200 |
1.5 | ≡ 44968868700 | 4.5 | ≡ 134906606100 |
2 | ≡ 59958491600 | 5 | ≡ 149896229000 |
2.5 | ≡ 74948114500 | 5.5 | ≡ 164885851900 |
3 | ≡ 89937737400 | 6 | ≡ 179875474800 |
A centimetre (international spelling as used by the International Bureau of Weights and Measures; symbol cm) or centimeter (American spelling) is a unit of length in the metric system, equal to one hundredth of a metre, centi being the SI prefix for a factor of 1/100 . The centimetre was the base unit of length in the now deprecated centimetre–gram–second (CGS) system of units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
centimeter | cm | ≡ 1×10-2 m ≡ 0.01 m | ≡ 1×10-2 m ≡ 0.01 m | Metric system SI |
centimeters | light-seconds | centimeters | light-seconds |
---|---|---|---|
1 | ≡ 3.3356409519815E-11 | 4 | ≡ 1.3342563807926E-10 |
1.5 | ≡ 5.0034614279723E-11 | 4.5 | ≡ 1.5010384283917E-10 |
2 | ≡ 6.671281903963E-11 | 5 | ≡ 1.6678204759908E-10 |
2.5 | ≡ 8.3391023799538E-11 | 5.5 | ≡ 1.8346025235898E-10 |
3 | ≡ 1.0006922855945E-10 | 6 | ≡ 2.0013845711889E-10 |
light-seconds | centimeters |
---|---|
1 | ≡ 29 979 245 800 |
3.3356409519815 × 10-11 | ≡ 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 …) |