At One Place

Miles to astronomical units

1 mile in astronomical units
1 mi = 1.076 × 10^-8 AU
AU = mi × 1.075780018 × 10^-8

To convert miles to astronomical units, multiply by 1.075780018 × 10^-8. The table below gives the values people look up most often, and the converter works for any number.

Miles to astronomical units table

Common mile values converted to astronomical units.
Miles Astronomical units
1 mi 1.076 × 10^-8
2 mi 2.152 × 10^-8
3 mi 3.227 × 10^-8
4 mi 4.303 × 10^-8
5 mi 5.379 × 10^-8
10 mi 1.076 × 10^-7
15 mi 1.614 × 10^-7
20 mi 2.152 × 10^-7
25 mi 2.689 × 10^-7
30 mi 3.227 × 10^-7
40 mi 4.303 × 10^-7
50 mi 5.379 × 10^-7
75 mi 8.068 × 10^-7
100 mi 0.000001076
250 mi 0.000002689
500 mi 0.000005379
1,000 mi 0.00001076

How the conversion works

The relationship is AU = mi × 1.075780018 × 10^-8. Both units measure length, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

Common questions

How many astronomical units are in one mile?
One mile equals 1.076 × 10^-8 astronomical units. AU = mi × 1.075780018 × 10^-8.
How do you convert miles to astronomical units?
Use AU = mi × 1.075780018 × 10^-8. So 10 mi is 1.076 × 10^-7 AU.
How many miles are in one astronomical unit?
One astronomical unit equals 92,955,807 miles, which is the reverse of the conversion above.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked