| earth radius | 1 R⊕ | 2 R⊕ | 3 R⊕ | 4 R⊕ | 5 R⊕ | 6 R⊕ | 7 R⊕ | 8 R⊕ | 9 R⊕ | 10 R⊕ | 11 R⊕ | 12 R⊕ | 13 R⊕ | 14 R⊕ | 15 R⊕ | 16 R⊕ | 17 R⊕ | 18 R⊕ | 19 R⊕ | 20 R⊕ | 21 R⊕ | 22 R⊕ | 23 R⊕ | 24 R⊕ | 25 R⊕ | 26 R⊕ | 27 R⊕ | 28 R⊕ | 29 R⊕ | 30 R⊕ | 31 R⊕ | 32 R⊕ | 33 R⊕ | 34 R⊕ | 35 R⊕ | 36 R⊕ | 37 R⊕ | 38 R⊕ | 39 R⊕ | 40 R⊕ | 41 R⊕ | 42 R⊕ | 43 R⊕ | 44 R⊕ | 45 R⊕ | 46 R⊕ | 47 R⊕ | 48 R⊕ | 49 R⊕ | 50 R⊕ | 51 R⊕ | 52 R⊕ | 53 R⊕ | 54 R⊕ | 55 R⊕ | 56 R⊕ | 57 R⊕ | 58 R⊕ | 59 R⊕ | 60 R⊕ | 61 R⊕ | 62 R⊕ | 63 R⊕ | 64 R⊕ | 65 R⊕ | 66 R⊕ | 67 R⊕ | 68 R⊕ | 69 R⊕ | 70 R⊕ | 71 R⊕ | 72 R⊕ | 73 R⊕ | 74 R⊕ | 75 R⊕ | 76 R⊕ | 77 R⊕ | 78 R⊕ | 79 R⊕ | 80 R⊕ | 81 R⊕ | 82 R⊕ | 83 R⊕ | 84 R⊕ | 85 R⊕ | 86 R⊕ | 87 R⊕ | 88 R⊕ | 89 R⊕ | 90 R⊕ | 91 R⊕ | 92 R⊕ | 93 R⊕ | 94 R⊕ | 95 R⊕ | 96 R⊕ | 97 R⊕ | 98 R⊕ | 99 R⊕ | 100 R⊕ |
| astronomical unit | 4.2587504555972 × 10-5 AU | 8.5175009111945 × 10-5 AU | 0.0001278 AU | 0.0001704 AU | 0.0002129 AU | 0.0002555 AU | 0.0002981 AU | 0.0003407 AU | 0.0003833 AU | 0.0004259 AU | 0.0004685 AU | 0.0005111 AU | 0.0005536 AU | 0.0005962 AU | 0.0006388 AU | 0.0006814 AU | 0.0007240 AU | 0.0007666 AU | 0.0008092 AU | 0.0008518 AU | 0.0008943 AU | 0.0009369 AU | 0.0009795 AU | 0.0010221 AU | 0.0010647 AU | 0.0011073 AU | 0.0011499 AU | 0.0011925 AU | 0.0012350 AU | 0.0012776 AU | 0.0013202 AU | 0.0013628 AU | 0.0014054 AU | 0.0014480 AU | 0.0014906 AU | 0.0015332 AU | 0.0015757 AU | 0.0016183 AU | 0.0016609 AU | 0.0017035 AU | 0.0017461 AU | 0.0017887 AU | 0.0018313 AU | 0.0018739 AU | 0.0019164 AU | 0.0019590 AU | 0.0020016 AU | 0.0020442 AU | 0.0020868 AU | 0.0021294 AU | 0.0021720 AU | 0.0022146 AU | 0.0022571 AU | 0.0022997 AU | 0.0023423 AU | 0.0023849 AU | 0.0024275 AU | 0.0024701 AU | 0.0025127 AU | 0.0025553 AU | 0.0025978 AU | 0.0026404 AU | 0.0026830 AU | 0.0027256 AU | 0.0027682 AU | 0.0028108 AU | 0.0028534 AU | 0.0028960 AU | 0.0029385 AU | 0.0029811 AU | 0.0030237 AU | 0.0030663 AU | 0.0031089 AU | 0.0031515 AU | 0.0031941 AU | 0.0032367 AU | 0.0032792 AU | 0.0033218 AU | 0.0033644 AU | 0.0034070 AU | 0.0034496 AU | 0.0034922 AU | 0.0035348 AU | 0.0035774 AU | 0.0036199 AU | 0.0036625 AU | 0.0037051 AU | 0.0037477 AU | 0.0037903 AU | 0.0038329 AU | 0.0038755 AU | 0.0039181 AU | 0.0039606 AU | 0.0040032 AU | 0.0040458 AU | 0.0040884 AU | 0.0041310 AU | 0.0041736 AU | 0.0042162 AU | 0.0042588 AU |
Earth radius is the distance from Earth's center to its surface, about 6,371 km (3,959 mi). This length is also used as a unit of distance, especially in astronomy and geology, where it is usually denoted by R⊕.
| 1 earth radius ≈ 4.2587504555972E-5 astronomical units | 4 earth radius ≈ 0.00017035001822389 astronomical units |
| 1.5 earth radius ≈ 6.3881256833958E-5 astronomical units | 4.5 earth radius ≈ 0.00019164377050188 astronomical units |
| 2 earth radius ≈ 8.5175009111945E-5 astronomical units | 5 earth radius ≈ 0.00021293752277986 astronomical units |
| 2.5 earth radius ≈ 0.00010646876138993 astronomical units | 5.5 earth radius ≈ 0.00023423127505785 astronomical units |
| 3 earth radius ≈ 0.00012776251366792 astronomical units | 6 earth radius ≈ 0.00025552502733583 astronomical units |
The astronomical unit (symbol: au or ua) is a unit of length, roughly the distance from Earth to the Sun. However, that distance varies as Earth orbits the Sun, from a maximum (aphelion) to a minimum (perihelion) and back again once a year. Originally conceived as the average of Earth's aphelion and perihelion, it is now defined as exactly 149 597 870 700 metres (about 150 million kilometres, or 93 million miles). The astronomical unit is used primarily as a convenient yardstick for measuring distances within the Solar System or around other stars. However, it is also a fundamental component in the definition of another unit of astronomical length, the parsec.
| 1 astronomical units ≈ 23481.065876628 earth radius | 4 astronomical units ≈ 93924.263506514 earth radius |
| 1.5 astronomical units ≈ 35221.598814943 earth radius | 4.5 astronomical units ≈ 105664.79644483 earth radius |
| 2 astronomical units ≈ 46962.131753257 earth radius | 5 astronomical units ≈ 117405.32938314 earth radius |
| 2.5 astronomical units ≈ 58702.664691571 earth radius | 5.5 astronomical units ≈ 129145.86232146 earth radius |
| 3 astronomical units ≈ 70443.197629885 earth radius | 6 astronomical units ≈ 140886.39525977 earth radius |
| 1 earth radius ≈ 4.2587504555972 × 10-5 astronomical units |
| 1 astronomical units ≈ 23,481.0658766 earth radius |