| light-hour | 1 light-hour | 2 light-hour | 3 light-hour | 4 light-hour | 5 light-hour | 6 light-hour | 7 light-hour | 8 light-hour | 9 light-hour | 10 light-hour | 11 light-hour | 12 light-hour | 13 light-hour | 14 light-hour | 15 light-hour | 16 light-hour | 17 light-hour | 18 light-hour | 19 light-hour | 20 light-hour | 21 light-hour | 22 light-hour | 23 light-hour | 24 light-hour | 25 light-hour | 26 light-hour | 27 light-hour | 28 light-hour | 29 light-hour | 30 light-hour | 31 light-hour | 32 light-hour | 33 light-hour | 34 light-hour | 35 light-hour | 36 light-hour | 37 light-hour | 38 light-hour | 39 light-hour | 40 light-hour | 41 light-hour | 42 light-hour | 43 light-hour | 44 light-hour | 45 light-hour | 46 light-hour | 47 light-hour | 48 light-hour | 49 light-hour | 50 light-hour | 51 light-hour | 52 light-hour | 53 light-hour | 54 light-hour | 55 light-hour | 56 light-hour | 57 light-hour | 58 light-hour | 59 light-hour | 60 light-hour | 61 light-hour | 62 light-hour | 63 light-hour | 64 light-hour | 65 light-hour | 66 light-hour | 67 light-hour | 68 light-hour | 69 light-hour | 70 light-hour | 71 light-hour | 72 light-hour | 73 light-hour | 74 light-hour | 75 light-hour | 76 light-hour | 77 light-hour | 78 light-hour | 79 light-hour | 80 light-hour | 81 light-hour | 82 light-hour | 83 light-hour | 84 light-hour | 85 light-hour | 86 light-hour | 87 light-hour | 88 light-hour | 89 light-hour | 90 light-hour | 91 light-hour | 92 light-hour | 93 light-hour | 94 light-hour | 95 light-hour | 96 light-hour | 97 light-hour | 98 light-hour | 99 light-hour | 100 light-hour |
| rod | 214,597,321,403.01 rd | 429,194,642,806.01 rd | 643,791,964,209.02 rd | 858,389,285,612.03 rd | 1 072 986 607 015 rd | 1 287 583 928 418 rd | 1 502 181 249 821 rd | 1,716,778,571,224.1 rd | 1,931,375,892,627.1 rd | 2,145,973,214,030.1 rd | 2,360,570,535,433.1 rd | 2,575,167,856,836.1 rd | 2,789,765,178,239.1 rd | 3,004,362,499,642.1 rd | 3,218,959,821,045.1 rd | 3,433,557,142,448.1 rd | 3,648,154,463,851.1 rd | 3,862,751,785,254.1 rd | 4,077,349,106,657.1 rd | 4,291,946,428,060.1 rd | 4,506,543,749,463.1 rd | 4,721,141,070,866.1 rd | 4,935,738,392,269.1 rd | 5,150,335,713,672.2 rd | 5,364,933,035,075.2 rd | 5,579,530,356,478.2 rd | 5,794,127,677,881.2 rd | 6,008,724,999,284.2 rd | 6,223,322,320,687.2 rd | 6,437,919,642,090.2 rd | 6,652,516,963,493.2 rd | 6,867,114,284,896.2 rd | 7,081,711,606,299.2 rd | 7,296,308,927,702.2 rd | 7,510,906,249,105.2 rd | 7,725,503,570,508.2 rd | 7,940,100,891,911.2 rd | 8,154,698,213,314.2 rd | 8,369,295,534,717.3 rd | 8,583,892,856,120.3 rd | 8,798,490,177,523.3 rd | 9,013,087,498,926.3 rd | 9,227,684,820,329.3 rd | 9,442,282,141,732.3 rd | 9,656,879,463,135.3 rd | 9,871,476,784,538.3 rd | 10 086 074 105 941 rd | 10 300 671 427 344 rd | 10 515 268 748 747 rd | 10 729 866 070 150 rd | 10 944 463 391 553 rd | 11 159 060 712 956 rd | 11 373 658 034 359 rd | 11 588 255 355 762 rd | 11 802 852 677 165 rd | 12 017 449 998 568 rd | 12 232 047 319 971 rd | 12 446 644 641 374 rd | 12 661 241 962 777 rd | 12 875 839 284 180 rd | 13 090 436 605 583 rd | 13 305 033 926 986 rd | 13 519 631 248 389 rd | 13 734 228 569 792 rd | 13 948 825 891 195 rd | 14 163 423 212 598 rd | 14 378 020 534 001 rd | 14 592 617 855 404 rd | 14 807 215 176 807 rd | 15 021 812 498 210 rd | 15 236 409 819 613 rd | 15 451 007 141 016 rd | 15 665 604 462 419 rd | 15 880 201 783 822 rd | 16 094 799 105 225 rd | 16 309 396 426 628 rd | 16 523 993 748 031 rd | 16 738 591 069 435 rd | 16 953 188 390 838 rd | 17 167 785 712 241 rd | 17 382 383 033 644 rd | 17 596 980 355 047 rd | 17 811 577 676 450 rd | 18 026 174 997 853 rd | 18 240 772 319 256 rd | 18 455 369 640 659 rd | 18 669 966 962 062 rd | 18 884 564 283 465 rd | 19 099 161 604 868 rd | 19 313 758 926 271 rd | 19 528 356 247 674 rd | 19 742 953 569 077 rd | 19 957 550 890 480 rd | 20 172 148 211 883 rd | 20 386 745 533 286 rd | 20 601 342 854 689 rd | 20 815 940 176 092 rd | 21 030 537 497 495 rd | 21 245 134 818 898 rd | 21 459 732 140 301 rd |
The light-hour 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 onehour, and is equal to exactly 1.0792528488×1012 metres.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| light-hour | ≡ 60 light-minutes | ≡ 1.0792528488×1012 m | Science - Astronomy (Length) |
| light-hours | rods | light-hours | rods |
|---|---|---|---|
| 1 | = 214597321403.01 | 4 | = 858389285612.03 |
| 1.5 | = 321895982104.51 | 4.5 | = 965687946313.53 |
| 2 | = 429194642806.01 | 5 | = 1072986607015 |
| 2.5 | = 536493303507.52 | 5.5 | = 1180285267716.5 |
| 3 | = 643791964209.02 | 6 | = 1287583928418 |
The rod or perch or pole is a surveyors tool and unit of length equal to 5 1⁄2 yards, 16 1⁄2 feet, 1⁄320 of a statute mile or one-fourth of a surveyor's chain and 5.0292 meters.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| rod | rd | ≡ 16 1⁄2 ft | = 5.0292 m | Imperial/US |
| rods | light-hours | rods | light-hours |
|---|---|---|---|
| 1 | = 4.6598904099182E-12 | 4 | = 1.8639561639673E-11 |
| 1.5 | = 6.9898356148773E-12 | 4.5 | = 2.0969506844632E-11 |
| 2 | = 9.3197808198364E-12 | 5 | = 2.3299452049591E-11 |
| 2.5 | = 1.1649726024795E-11 | 5.5 | = 2.562939725455E-11 |
| 3 | = 1.3979671229755E-11 | 6 | = 2.7959342459509E-11 |
| light-hours | rods |
|---|---|
| 1 | = 214,597,321,403.01 |
| 4.6598904099182 × 10-12 | = 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 …) |