| hubble length | 1 hubble length | 2 hubble length | 3 hubble length | 4 hubble length | 5 hubble length | 6 hubble length | 7 hubble length | 8 hubble length | 9 hubble length | 10 hubble length | 11 hubble length | 12 hubble length | 13 hubble length | 14 hubble length | 15 hubble length | 16 hubble length | 17 hubble length | 18 hubble length | 19 hubble length | 20 hubble length | 21 hubble length | 22 hubble length | 23 hubble length | 24 hubble length | 25 hubble length | 26 hubble length | 27 hubble length | 28 hubble length | 29 hubble length | 30 hubble length | 31 hubble length | 32 hubble length | 33 hubble length | 34 hubble length | 35 hubble length | 36 hubble length | 37 hubble length | 38 hubble length | 39 hubble length | 40 hubble length | 41 hubble length | 42 hubble length | 43 hubble length | 44 hubble length | 45 hubble length | 46 hubble length | 47 hubble length | 48 hubble length | 49 hubble length | 50 hubble length | 51 hubble length | 52 hubble length | 53 hubble length | 54 hubble length | 55 hubble length | 56 hubble length | 57 hubble length | 58 hubble length | 59 hubble length | 60 hubble length | 61 hubble length | 62 hubble length | 63 hubble length | 64 hubble length | 65 hubble length | 66 hubble length | 67 hubble length | 68 hubble length | 69 hubble length | 70 hubble length | 71 hubble length | 72 hubble length | 73 hubble length | 74 hubble length | 75 hubble length | 76 hubble length | 77 hubble length | 78 hubble length | 79 hubble length | 80 hubble length | 81 hubble length | 82 hubble length | 83 hubble length | 84 hubble length | 85 hubble length | 86 hubble length | 87 hubble length | 88 hubble length | 89 hubble length | 90 hubble length | 91 hubble length | 92 hubble length | 93 hubble length | 94 hubble length | 95 hubble length | 96 hubble length | 97 hubble length | 98 hubble length | 99 hubble length | 100 hubble length |
| pace | 1.7878163914732 × 1026 pace | 3.5756327829465 × 1026 pace | 5.3634491744197 × 1026 pace | 7.1512655658929 × 1026 pace | 8.9390819573661 × 1026 pace | 1.0726898348839 × 1027 pace | 1.2514714740313 × 1027 pace | 1.4302531131786 × 1027 pace | 1.6090347523259 × 1027 pace | 1.7878163914732 × 1027 pace | 1.9665980306206 × 1027 pace | 2.1453796697679 × 1027 pace | 2.3241613089152 × 1027 pace | 2.5029429480625 × 1027 pace | 2.6817245872098 × 1027 pace | 2.8605062263572 × 1027 pace | 3.0392878655045 × 1027 pace | 3.2180695046518 × 1027 pace | 3.3968511437991 × 1027 pace | 3.5756327829465 × 1027 pace | 3.7544144220938 × 1027 pace | 3.9331960612411 × 1027 pace | 4.1119777003884 × 1027 pace | 4.2907593395357 × 1027 pace | 4.4695409786831 × 1027 pace | 4.6483226178304 × 1027 pace | 4.8271042569777 × 1027 pace | 5.005885896125 × 1027 pace | 5.1846675352724 × 1027 pace | 5.3634491744197 × 1027 pace | 5.542230813567 × 1027 pace | 5.7210124527143 × 1027 pace | 5.8997940918617 × 1027 pace | 6.078575731009 × 1027 pace | 6.2573573701563 × 1027 pace | 6.4361390093036 × 1027 pace | 6.6149206484509 × 1027 pace | 6.7937022875983 × 1027 pace | 6.9724839267456 × 1027 pace | 7.1512655658929 × 1027 pace | 7.3300472050402 × 1027 pace | 7.5088288441876 × 1027 pace | 7.6876104833349 × 1027 pace | 7.8663921224822 × 1027 pace | 8.0451737616295 × 1027 pace | 8.2239554007769 × 1027 pace | 8.4027370399242 × 1027 pace | 8.5815186790715 × 1027 pace | 8.7603003182188 × 1027 pace | 8.9390819573661 × 1027 pace | 9.1178635965135 × 1027 pace | 9.2966452356608 × 1027 pace | 9.4754268748081 × 1027 pace | 9.6542085139554 × 1027 pace | 9.8329901531028 × 1027 pace | 1.001177179225 × 1028 pace | 1.0190553431397 × 1028 pace | 1.0369335070545 × 1028 pace | 1.0548116709692 × 1028 pace | 1.0726898348839 × 1028 pace | 1.0905679987987 × 1028 pace | 1.1084461627134 × 1028 pace | 1.1263243266281 × 1028 pace | 1.1442024905429 × 1028 pace | 1.1620806544576 × 1028 pace | 1.1799588183723 × 1028 pace | 1.1978369822871 × 1028 pace | 1.2157151462018 × 1028 pace | 1.2335933101165 × 1028 pace | 1.2514714740313 × 1028 pace | 1.269349637946 × 1028 pace | 1.2872278018607 × 1028 pace | 1.3051059657755 × 1028 pace | 1.3229841296902 × 1028 pace | 1.3408622936049 × 1028 pace | 1.3587404575197 × 1028 pace | 1.3766186214344 × 1028 pace | 1.3944967853491 × 1028 pace | 1.4123749492639 × 1028 pace | 1.4302531131786 × 1028 pace | 1.4481312770933 × 1028 pace | 1.466009441008 × 1028 pace | 1.4838876049228 × 1028 pace | 1.5017657688375 × 1028 pace | 1.5196439327522 × 1028 pace | 1.537522096667 × 1028 pace | 1.5554002605817 × 1028 pace | 1.5732784244964 × 1028 pace | 1.5911565884112 × 1028 pace | 1.6090347523259 × 1028 pace | 1.6269129162406 × 1028 pace | 1.6447910801554 × 1028 pace | 1.6626692440701 × 1028 pace | 1.6805474079848 × 1028 pace | 1.6984255718996 × 1028 pace | 1.7163037358143 × 1028 pace | 1.734181899729 × 1028 pace | 1.7520600636438 × 1028 pace | 1.7699382275585 × 1028 pace | 1.7878163914732 × 1028 pace |
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 | paces | Hubble length | paces |
|---|---|---|---|
| 1 | ≈ 1.7878163914732E+26 | 4 | ≈ 7.1512655658929E+26 |
| 1.5 | ≈ 2.6817245872098E+26 | 4.5 | ≈ 8.0451737616295E+26 |
| 2 | ≈ 3.5756327829465E+26 | 5 | ≈ 8.9390819573661E+26 |
| 2.5 | ≈ 4.4695409786831E+26 | 5.5 | ≈ 9.8329901531028E+26 |
| 3 | ≈ 5.3634491744197E+26 | 6 | ≈ 1.0726898348839E+27 |
A pace is a unit of length consisting either of one normal walking step (~0.75 m), or of a double step, returning to the same foot (~1.5 m). Like other traditional measurements, paces started as informal units but have since been standardized, often with the specific length set according to a typical brisk or military marching stride.
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| pace | ≡ 2.5 ft | = 0.762 m | Imperial/US |
| paces | Hubble length | paces | Hubble length |
|---|---|---|---|
| 1 | ≈ 5.5934155474207E-27 | 4 | ≈ 2.2373662189683E-26 |
| 1.5 | ≈ 8.3901233211311E-27 | 4.5 | ≈ 2.5170369963393E-26 |
| 2 | ≈ 1.1186831094841E-26 | 5 | ≈ 2.7967077737104E-26 |
| 2.5 | ≈ 1.3983538868552E-26 | 5.5 | ≈ 3.0763785510814E-26 |
| 3 | ≈ 1.6780246642262E-26 | 6 | ≈ 3.3560493284524E-26 |
| Hubble length | paces |
|---|---|
| 1 | ≈ 1.7878163914732 × 1026 |
| 5.5934155474207 × 10-27 | ≈ 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 …) |