1 earth radius = 4.2587504555972 × 10-5astronomical units 

Earth radius to Astronomical units Conversion

Earth radius to astronomical unit conversion allow you make a conversion between earth radius and astronomical unit easily. You can find the tool in the following.

Length Conversion


= 0.00004259
= 4.25875 × 10-5
= 4.25875E-5
= 4.25875e-5
= 0.00006388
= 6.38813 × 10-5
= 6.38813E-5
= 6.38813e-5
= 0.00008518
= 8.5175 × 10-5
= 8.5175E-5
= 8.5175e-5
= 0.00010647
= 106469 × 10-9
= 106469E-9
= 106469e-9
= 0.00012776
= 127763 × 10-9
= 127763E-9
= 127763e-9

Quick Look: earth radius to astronomical units

earth radius1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R30 R31 R32 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 R48 R49 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R60 R61 R62 R63 R64 R65 R66 R67 R68 R69 R70 R71 R72 R73 R74 R75 R76 R77 R78 R79 R80 R81 R82 R83 R84 R85 R86 R87 R88 R89 R90 R91 R92 R93 R94 R95 R96 R97 R98 R99 R100 R
astronomical unit4.2587504555972 × 10-5 AU8.5175009111945 × 10-5 AU0.0001278 AU0.0001704 AU0.0002129 AU0.0002555 AU0.0002981 AU0.0003407 AU0.0003833 AU0.0004259 AU0.0004685 AU0.0005111 AU0.0005536 AU0.0005962 AU0.0006388 AU0.0006814 AU0.0007240 AU0.0007666 AU0.0008092 AU0.0008518 AU0.0008943 AU0.0009369 AU0.0009795 AU0.0010221 AU0.0010647 AU0.0011073 AU0.0011499 AU0.0011925 AU0.0012350 AU0.0012776 AU0.0013202 AU0.0013628 AU0.0014054 AU0.0014480 AU0.0014906 AU0.0015332 AU0.0015757 AU0.0016183 AU0.0016609 AU0.0017035 AU0.0017461 AU0.0017887 AU0.0018313 AU0.0018739 AU0.0019164 AU0.0019590 AU0.0020016 AU0.0020442 AU0.0020868 AU0.0021294 AU0.0021720 AU0.0022146 AU0.0022571 AU0.0022997 AU0.0023423 AU0.0023849 AU0.0024275 AU0.0024701 AU0.0025127 AU0.0025553 AU0.0025978 AU0.0026404 AU0.0026830 AU0.0027256 AU0.0027682 AU0.0028108 AU0.0028534 AU0.0028960 AU0.0029385 AU0.0029811 AU0.0030237 AU0.0030663 AU0.0031089 AU0.0031515 AU0.0031941 AU0.0032367 AU0.0032792 AU0.0033218 AU0.0033644 AU0.0034070 AU0.0034496 AU0.0034922 AU0.0035348 AU0.0035774 AU0.0036199 AU0.0036625 AU0.0037051 AU0.0037477 AU0.0037903 AU0.0038329 AU0.0038755 AU0.0039181 AU0.0039606 AU0.0040032 AU0.0040458 AU0.0040884 AU0.0041310 AU0.0041736 AU0.0042162 AU0.0042588 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.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
earth radiusR

≈ 6,371 km

≈ 6,371 km

Science - Astronomy (Length)

conversion table

earth radiusastronomical unitsearth radiusastronomical units
1≈ 4.2587504555972E-54≈ 0.00017035001822389
1.5≈ 6.3881256833958E-54.5≈ 0.00019164377050188
2≈ 8.5175009111945E-55≈ 0.00021293752277986
2.5≈ 0.000106468761389935.5≈ 0.00023423127505785
3≈ 0.000127762513667926≈ 0.00025552502733583

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.

Name of unitSymbolDefinitionRelation to SI unitsUnit System
astronomical unitAU

≡ 149 597 870 700 m ≈ Distance from Earth to Sun

≡ 149 597 870 700 m

Science - Astronomy (Length)

conversion table

astronomical unitsearth radiusastronomical unitsearth radius
1≈ 23481.0658766284≈ 93924.263506514
1.5≈ 35221.5988149434.5≈ 105664.79644483
2≈ 46962.1317532575≈ 117405.32938314
2.5≈ 58702.6646915715.5≈ 129145.86232146
3≈ 70443.1976298856≈ 140886.39525977

Conversion table

earth radiusastronomical units
1≈ 4.2587504555972 × 10-5
23,481.0658766≈ 1


exactly equal
approximately equal to
=equal to
digitsindicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …)