| 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 |
| foot, metric (short) | 3 597 509 496 000 smf | 7 195 018 992 000 smf | 10 792 528 488 000 smf | 14 390 037 984 000 smf | 17 987 547 480 000 smf | 21 585 056 976 000 smf | 25 182 566 472 000 smf | 28 780 075 968 000 smf | 32 377 585 464 000 smf | 35 975 094 960 000 smf | 39 572 604 456 000 smf | 43 170 113 952 000 smf | 46 767 623 448 000 smf | 50 365 132 944 000 smf | 53 962 642 440 000 smf | 57 560 151 936 000 smf | 61 157 661 432 000 smf | 64 755 170 928 000 smf | 68 352 680 424 000 smf | 71 950 189 920 000 smf | 75 547 699 416 000 smf | 79 145 208 912 000 smf | 82 742 718 408 000 smf | 86 340 227 904 000 smf | 89 937 737 400 000 smf | 93 535 246 896 000 smf | 97 132 756 392 000 smf | 1.00730265888 × 1014 smf | 1.04327775384 × 1014 smf | 1.0792528488 × 1014 smf | 1.11522794376 × 1014 smf | 1.15120303872 × 1014 smf | 1.18717813368 × 1014 smf | 1.22315322864 × 1014 smf | 1.2591283236 × 1014 smf | 1.29510341856 × 1014 smf | 1.33107851352 × 1014 smf | 1.36705360848 × 1014 smf | 1.40302870344 × 1014 smf | 1.4390037984 × 1014 smf | 1.47497889336 × 1014 smf | 1.51095398832 × 1014 smf | 1.54692908328 × 1014 smf | 1.58290417824 × 1014 smf | 1.6188792732 × 1014 smf | 1.65485436816 × 1014 smf | 1.69082946312 × 1014 smf | 1.72680455808 × 1014 smf | 1.76277965304 × 1014 smf | 1.798754748 × 1014 smf | 1.83472984296 × 1014 smf | 1.87070493792 × 1014 smf | 1.90668003288 × 1014 smf | 1.94265512784 × 1014 smf | 1.9786302228 × 1014 smf | 2.01460531776 × 1014 smf | 2.05058041272 × 1014 smf | 2.08655550768 × 1014 smf | 2.12253060264 × 1014 smf | 2.1585056976 × 1014 smf | 2.19448079256 × 1014 smf | 2.23045588752 × 1014 smf | 2.26643098248 × 1014 smf | 2.30240607744 × 1014 smf | 2.3383811724 × 1014 smf | 2.37435626736 × 1014 smf | 2.41033136232 × 1014 smf | 2.44630645728 × 1014 smf | 2.48228155224 × 1014 smf | 2.5182566472 × 1014 smf | 2.55423174216 × 1014 smf | 2.59020683712 × 1014 smf | 2.62618193208 × 1014 smf | 2.66215702704 × 1014 smf | 2.698132122 × 1014 smf | 2.73410721696 × 1014 smf | 2.77008231192 × 1014 smf | 2.80605740688 × 1014 smf | 2.84203250184 × 1014 smf | 2.8780075968 × 1014 smf | 2.91398269176 × 1014 smf | 2.94995778672 × 1014 smf | 2.98593288168 × 1014 smf | 3.02190797664 × 1014 smf | 3.0578830716 × 1014 smf | 3.09385816656 × 1014 smf | 3.12983326152 × 1014 smf | 3.16580835648 × 1014 smf | 3.20178345144 × 1014 smf | 3.2377585464 × 1014 smf | 3.27373364136 × 1014 smf | 3.30970873632 × 1014 smf | 3.34568383128 × 1014 smf | 3.38165892624 × 1014 smf | 3.4176340212 × 1014 smf | 3.45360911616 × 1014 smf | 3.48958421112 × 1014 smf | 3.52555930608 × 1014 smf | 3.56153440104 × 1014 smf | 3.597509496 × 1014 smf |
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 | feet, metric (short) | light-hours | feet, metric (short) |
|---|---|---|---|
| 1 | ≡ 3597509496000 | 4 | ≡ 14390037984000 |
| 1.5 | ≡ 5396264244000 | 4.5 | ≡ 16188792732000 |
| 2 | ≡ 7195018992000 | 5 | ≡ 17987547480000 |
| 2.5 | ≡ 8993773740000 | 5.5 | ≡ 19786302228000 |
| 3 | ≡ 10792528488000 | 6 | ≡ 21585056976000 |
≡ 0.30 m
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| foot, metric (short) | smf | ≡ 0.30 m | ≡ 0.30 m | Metric system SI |
| feet, metric (short) | light-hours | feet, metric (short) | light-hours |
|---|---|---|---|
| 1 | ≡ 2.7797007933179E-13 | 4 | ≡ 1.1118803173272E-12 |
| 1.5 | ≡ 4.1695511899769E-13 | 4.5 | ≡ 1.2508653569931E-12 |
| 2 | ≡ 5.5594015866359E-13 | 5 | ≡ 1.389850396659E-12 |
| 2.5 | ≡ 6.9492519832948E-13 | 5.5 | ≡ 1.5288354363249E-12 |
| 3 | ≡ 8.3391023799538E-13 | 6 | ≡ 1.6678204759908E-12 |
| light-hours | feet, metric (short) |
|---|---|
| 1 | ≡ 3 597 509 496 000 |
| 2.7797007933179 × 10-13 | ≡ 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 …) |