| mile (US Survey) | 1 mi (US) | 2 mi (US) | 3 mi (US) | 4 mi (US) | 5 mi (US) | 6 mi (US) | 7 mi (US) | 8 mi (US) | 9 mi (US) | 10 mi (US) | 11 mi (US) | 12 mi (US) | 13 mi (US) | 14 mi (US) | 15 mi (US) | 16 mi (US) | 17 mi (US) | 18 mi (US) | 19 mi (US) | 20 mi (US) | 21 mi (US) | 22 mi (US) | 23 mi (US) | 24 mi (US) | 25 mi (US) | 26 mi (US) | 27 mi (US) | 28 mi (US) | 29 mi (US) | 30 mi (US) | 31 mi (US) | 32 mi (US) | 33 mi (US) | 34 mi (US) | 35 mi (US) | 36 mi (US) | 37 mi (US) | 38 mi (US) | 39 mi (US) | 40 mi (US) | 41 mi (US) | 42 mi (US) | 43 mi (US) | 44 mi (US) | 45 mi (US) | 46 mi (US) | 47 mi (US) | 48 mi (US) | 49 mi (US) | 50 mi (US) | 51 mi (US) | 52 mi (US) | 53 mi (US) | 54 mi (US) | 55 mi (US) | 56 mi (US) | 57 mi (US) | 58 mi (US) | 59 mi (US) | 60 mi (US) | 61 mi (US) | 62 mi (US) | 63 mi (US) | 64 mi (US) | 65 mi (US) | 66 mi (US) | 67 mi (US) | 68 mi (US) | 69 mi (US) | 70 mi (US) | 71 mi (US) | 72 mi (US) | 73 mi (US) | 74 mi (US) | 75 mi (US) | 76 mi (US) | 77 mi (US) | 78 mi (US) | 79 mi (US) | 80 mi (US) | 81 mi (US) | 82 mi (US) | 83 mi (US) | 84 mi (US) | 85 mi (US) | 86 mi (US) | 87 mi (US) | 88 mi (US) | 89 mi (US) | 90 mi (US) | 91 mi (US) | 92 mi (US) | 93 mi (US) | 94 mi (US) | 95 mi (US) | 96 mi (US) | 97 mi (US) | 98 mi (US) | 99 mi (US) | 100 mi (US) |
| astronomical unit | 1.0757821695386 × 10-8 AU | 2.1515643390772 × 10-8 AU | 3.2273465086158 × 10-8 AU | 4.3031286781544 × 10-8 AU | 5.378910847693 × 10-8 AU | 6.4546930172316 × 10-8 AU | 7.5304751867702 × 10-8 AU | 8.6062573563087 × 10-8 AU | 9.6820395258473 × 10-8 AU | 1.0757821695386 × 10-7 AU | 1.1833603864925 × 10-7 AU | 1.2909386034463 × 10-7 AU | 1.3985168204002 × 10-7 AU | 1.506095037354 × 10-7 AU | 1.6136732543079 × 10-7 AU | 1.7212514712617 × 10-7 AU | 1.8288296882156 × 10-7 AU | 1.9364079051695 × 10-7 AU | 2.0439861221233 × 10-7 AU | 2.1515643390772 × 10-7 AU | 2.259142556031 × 10-7 AU | 2.3667207729849 × 10-7 AU | 2.4742989899388 × 10-7 AU | 2.5818772068926 × 10-7 AU | 2.6894554238465 × 10-7 AU | 2.7970336408003 × 10-7 AU | 2.9046118577542 × 10-7 AU | 3.0121900747081 × 10-7 AU | 3.1197682916619 × 10-7 AU | 3.2273465086158 × 10-7 AU | 3.3349247255696 × 10-7 AU | 3.4425029425235 × 10-7 AU | 3.5500811594774 × 10-7 AU | 3.6576593764312 × 10-7 AU | 3.7652375933851 × 10-7 AU | 3.8728158103389 × 10-7 AU | 3.9803940272928 × 10-7 AU | 4.0879722442467 × 10-7 AU | 4.1955504612005 × 10-7 AU | 4.3031286781544 × 10-7 AU | 4.4107068951082 × 10-7 AU | 4.5182851120621 × 10-7 AU | 4.625863329016 × 10-7 AU | 4.7334415459698 × 10-7 AU | 4.8410197629237 × 10-7 AU | 4.9485979798775 × 10-7 AU | 5.0561761968314 × 10-7 AU | 5.1637544137852 × 10-7 AU | 5.2713326307391 × 10-7 AU | 5.378910847693 × 10-7 AU | 5.4864890646468 × 10-7 AU | 5.5940672816007 × 10-7 AU | 5.7016454985545 × 10-7 AU | 5.8092237155084 × 10-7 AU | 5.9168019324623 × 10-7 AU | 6.0243801494161 × 10-7 AU | 6.13195836637 × 10-7 AU | 6.2395365833238 × 10-7 AU | 6.3471148002777 × 10-7 AU | 6.4546930172316 × 10-7 AU | 6.5622712341854 × 10-7 AU | 6.6698494511393 × 10-7 AU | 6.7774276680931 × 10-7 AU | 6.885005885047 × 10-7 AU | 6.9925841020009 × 10-7 AU | 7.1001623189547 × 10-7 AU | 7.2077405359086 × 10-7 AU | 7.3153187528624 × 10-7 AU | 7.4228969698163 × 10-7 AU | 7.5304751867702 × 10-7 AU | 7.638053403724 × 10-7 AU | 7.7456316206779 × 10-7 AU | 7.8532098376317 × 10-7 AU | 7.9607880545856 × 10-7 AU | 8.0683662715395 × 10-7 AU | 8.1759444884933 × 10-7 AU | 8.2835227054472 × 10-7 AU | 8.391100922401 × 10-7 AU | 8.4986791393549 × 10-7 AU | 8.6062573563087 × 10-7 AU | 8.7138355732626 × 10-7 AU | 8.8214137902165 × 10-7 AU | 8.9289920071703 × 10-7 AU | 9.0365702241242 × 10-7 AU | 9.144148441078 × 10-7 AU | 9.2517266580319 × 10-7 AU | 9.3593048749858 × 10-7 AU | 9.4668830919396 × 10-7 AU | 9.5744613088935 × 10-7 AU | 9.6820395258473 × 10-7 AU | 9.7896177428012 × 10-7 AU | 9.8971959597551 × 10-7 AU | 1.0004774176709 × 10-6 AU | 1.0112352393663 × 10-6 AU | 1.0219930610617 × 10-6 AU | 1.032750882757 × 10-6 AU | 1.0435087044524 × 10-6 AU | 1.0542665261478 × 10-6 AU | 1.0650243478432 × 10-6 AU | 1.0757821695386 × 10-6 AU |
≡ 5280 US Survey feet ≡ (5280 × 1200⁄3937) m
| 1 miles (US Survey) ≈ 1.0757821695386E-8 astronomical units | 4 miles (US Survey) ≈ 4.3031286781544E-8 astronomical units |
| 1.5 miles (US Survey) ≈ 1.6136732543079E-8 astronomical units | 4.5 miles (US Survey) ≈ 4.8410197629237E-8 astronomical units |
| 2 miles (US Survey) ≈ 2.1515643390772E-8 astronomical units | 5 miles (US Survey) ≈ 5.378910847693E-8 astronomical units |
| 2.5 miles (US Survey) ≈ 2.6894554238465E-8 astronomical units | 5.5 miles (US Survey) ≈ 5.9168019324623E-8 astronomical units |
| 3 miles (US Survey) ≈ 3.2273465086158E-8 astronomical units | 6 miles (US Survey) ≈ 6.4546930172316E-8 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 ≈ 92955621.343762 miles (US Survey) | 4 astronomical units ≈ 371822485.37505 miles (US Survey) |
| 1.5 astronomical units ≈ 139433432.01564 miles (US Survey) | 4.5 astronomical units ≈ 418300296.04693 miles (US Survey) |
| 2 astronomical units ≈ 185911242.68752 miles (US Survey) | 5 astronomical units ≈ 464778106.71881 miles (US Survey) |
| 2.5 astronomical units ≈ 232389053.3594 miles (US Survey) | 5.5 astronomical units ≈ 511255917.39069 miles (US Survey) |
| 3 astronomical units ≈ 278866864.03129 miles (US Survey) | 6 astronomical units ≈ 557733728.06257 miles (US Survey) |
| 1 miles (US Survey) ≈ 1.0757821695386 × 10-8 astronomical units |
| 1 astronomical units ≈ 92,955,621.343762 miles (US Survey) |