| fathom | 1 ftm | 2 ftm | 3 ftm | 4 ftm | 5 ftm | 6 ftm | 7 ftm | 8 ftm | 9 ftm | 10 ftm | 11 ftm | 12 ftm | 13 ftm | 14 ftm | 15 ftm | 16 ftm | 17 ftm | 18 ftm | 19 ftm | 20 ftm | 21 ftm | 22 ftm | 23 ftm | 24 ftm | 25 ftm | 26 ftm | 27 ftm | 28 ftm | 29 ftm | 30 ftm | 31 ftm | 32 ftm | 33 ftm | 34 ftm | 35 ftm | 36 ftm | 37 ftm | 38 ftm | 39 ftm | 40 ftm | 41 ftm | 42 ftm | 43 ftm | 44 ftm | 45 ftm | 46 ftm | 47 ftm | 48 ftm | 49 ftm | 50 ftm | 51 ftm | 52 ftm | 53 ftm | 54 ftm | 55 ftm | 56 ftm | 57 ftm | 58 ftm | 59 ftm | 60 ftm | 61 ftm | 62 ftm | 63 ftm | 64 ftm | 65 ftm | 66 ftm | 67 ftm | 68 ftm | 69 ftm | 70 ftm | 71 ftm | 72 ftm | 73 ftm | 74 ftm | 75 ftm | 76 ftm | 77 ftm | 78 ftm | 79 ftm | 80 ftm | 81 ftm | 82 ftm | 83 ftm | 84 ftm | 85 ftm | 86 ftm | 87 ftm | 88 ftm | 89 ftm | 90 ftm | 91 ftm | 92 ftm | 93 ftm | 94 ftm | 95 ftm | 96 ftm | 97 ftm | 98 ftm | 99 ftm | 100 ftm |
| hubble length | 1.342419731381 × 10-26 hubble length | 2.684839462762 × 10-26 hubble length | 4.0272591941429 × 10-26 hubble length | 5.3696789255239 × 10-26 hubble length | 6.7120986569049 × 10-26 hubble length | 8.0545183882859 × 10-26 hubble length | 9.3969381196668 × 10-26 hubble length | 1.0739357851048 × 10-25 hubble length | 1.2081777582429 × 10-25 hubble length | 1.342419731381 × 10-25 hubble length | 1.4766617045191 × 10-25 hubble length | 1.6109036776572 × 10-25 hubble length | 1.7451456507953 × 10-25 hubble length | 1.8793876239334 × 10-25 hubble length | 2.0136295970715 × 10-25 hubble length | 2.1478715702096 × 10-25 hubble length | 2.2821135433477 × 10-25 hubble length | 2.4163555164858 × 10-25 hubble length | 2.5505974896239 × 10-25 hubble length | 2.684839462762 × 10-25 hubble length | 2.8190814359001 × 10-25 hubble length | 2.9533234090382 × 10-25 hubble length | 3.0875653821762 × 10-25 hubble length | 3.2218073553143 × 10-25 hubble length | 3.3560493284524 × 10-25 hubble length | 3.4902913015905 × 10-25 hubble length | 3.6245332747286 × 10-25 hubble length | 3.7587752478667 × 10-25 hubble length | 3.8930172210048 × 10-25 hubble length | 4.0272591941429 × 10-25 hubble length | 4.161501167281 × 10-25 hubble length | 4.2957431404191 × 10-25 hubble length | 4.4299851135572 × 10-25 hubble length | 4.5642270866953 × 10-25 hubble length | 4.6984690598334 × 10-25 hubble length | 4.8327110329715 × 10-25 hubble length | 4.9669530061096 × 10-25 hubble length | 5.1011949792477 × 10-25 hubble length | 5.2354369523858 × 10-25 hubble length | 5.3696789255239 × 10-25 hubble length | 5.503920898662 × 10-25 hubble length | 5.6381628718001 × 10-25 hubble length | 5.7724048449382 × 10-25 hubble length | 5.9066468180763 × 10-25 hubble length | 6.0408887912144 × 10-25 hubble length | 6.1751307643525 × 10-25 hubble length | 6.3093727374906 × 10-25 hubble length | 6.4436147106287 × 10-25 hubble length | 6.5778566837668 × 10-25 hubble length | 6.7120986569049 × 10-25 hubble length | 6.846340630043 × 10-25 hubble length | 6.9805826031811 × 10-25 hubble length | 7.1148245763192 × 10-25 hubble length | 7.2490665494573 × 10-25 hubble length | 7.3833085225954 × 10-25 hubble length | 7.5175504957335 × 10-25 hubble length | 7.6517924688716 × 10-25 hubble length | 7.7860344420097 × 10-25 hubble length | 7.9202764151478 × 10-25 hubble length | 8.0545183882859 × 10-25 hubble length | 8.188760361424 × 10-25 hubble length | 8.3230023345621 × 10-25 hubble length | 8.4572443077002 × 10-25 hubble length | 8.5914862808383 × 10-25 hubble length | 8.7257282539764 × 10-25 hubble length | 8.8599702271145 × 10-25 hubble length | 8.9942122002526 × 10-25 hubble length | 9.1284541733906 × 10-25 hubble length | 9.2626961465287 × 10-25 hubble length | 9.3969381196668 × 10-25 hubble length | 9.5311800928049 × 10-25 hubble length | 9.665422065943 × 10-25 hubble length | 9.7996640390811 × 10-25 hubble length | 9.9339060122192 × 10-25 hubble length | 1.0068147985357 × 10-24 hubble length | 1.0202389958495 × 10-24 hubble length | 1.0336631931634 × 10-24 hubble length | 1.0470873904772 × 10-24 hubble length | 1.060511587791 × 10-24 hubble length | 1.0739357851048 × 10-24 hubble length | 1.0873599824186 × 10-24 hubble length | 1.1007841797324 × 10-24 hubble length | 1.1142083770462 × 10-24 hubble length | 1.12763257436 × 10-24 hubble length | 1.1410567716738 × 10-24 hubble length | 1.1544809689876 × 10-24 hubble length | 1.1679051663015 × 10-24 hubble length | 1.1813293636153 × 10-24 hubble length | 1.1947535609291 × 10-24 hubble length | 1.2081777582429 × 10-24 hubble length | 1.2216019555567 × 10-24 hubble length | 1.2350261528705 × 10-24 hubble length | 1.2484503501843 × 10-24 hubble length | 1.2618745474981 × 10-24 hubble length | 1.2752987448119 × 10-24 hubble length | 1.2887229421257 × 10-24 hubble length | 1.3021471394395 × 10-24 hubble length | 1.3155713367534 × 10-24 hubble length | 1.3289955340672 × 10-24 hubble length | 1.342419731381 × 10-24 hubble length |
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.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| fathom | ftm | ≡ 6 ft | = 1.8288 m | Imperial/US |
| fathoms | Hubble length | fathoms | Hubble length |
|---|---|---|---|
| 1 | ≈ 1.342419731381E-26 | 4 | ≈ 5.3696789255239E-26 |
| 1.5 | ≈ 2.0136295970715E-26 | 4.5 | ≈ 6.0408887912144E-26 |
| 2 | ≈ 2.684839462762E-26 | 5 | ≈ 6.7120986569049E-26 |
| 2.5 | ≈ 3.3560493284524E-26 | 5.5 | ≈ 7.3833085225954E-26 |
| 3 | ≈ 4.0272591941429E-26 | 6 | ≈ 8.0545183882859E-26 |
The Hubble length or Hubble distance is a unit of distance in cosmology, defined as cH0−1 — the speed of light multiplied by the Hubble time. It is equivalent to 4,550 million parsecs or 14.4 billion light years. (The numerical value of the Hubble length in light years is, by definition, equal to that of the Hubble time in years.) The Hubble distance would be the distance between the Earth and the galaxies which are currently receding from us at the speed of light, as can be seen by substituting D = c/H0 into the equation for Hubble's law, v = H0D.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| hubble length | ≈ 14.4 billion light-years ≈ 4.55 gigaparsecs | ≈ 1.3623160903026E+26 m | Science - Astronomy (Length) |
| Hubble length | fathoms | Hubble length | fathoms |
|---|---|---|---|
| 1 | ≈ 7.4492349644718E+25 | 4 | ≈ 2.9796939857887E+26 |
| 1.5 | ≈ 1.1173852446708E+26 | 4.5 | ≈ 3.3521557340123E+26 |
| 2 | ≈ 1.4898469928944E+26 | 5 | ≈ 3.7246174822359E+26 |
| 2.5 | ≈ 1.8623087411179E+26 | 5.5 | ≈ 4.0970792304595E+26 |
| 3 | ≈ 2.2347704893415E+26 | 6 | ≈ 4.4695409786831E+26 |
| fathoms | Hubble length |
|---|---|
| 1 | ≈ 1.342419731381 × 10-26 |
| 7.4492349644718 × 1025 | ≈ 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 …) |