At One Place

Astronomical units to millimeters

1 astronomical unit in millimeters
1 AU = 149,597,870,000,000 mm
mm = AU × 149,597,870,700,000

To convert astronomical units to millimeters, multiply by 149,597,870,700,000. The table below gives the values people look up most often, and the converter works for any number.

Astronomical units to millimeters table

Common astronomical unit values converted to millimeters.
Astronomical units Millimeters
1 AU 149,597,870,000,000
2 AU 299,195,740,000,000
3 AU 448,793,610,000,000
4 AU 598,391,480,000,000
5 AU 747,989,350,000,000
10 AU 1.4959787 × 10^15
15 AU 2.2439681 × 10^15
20 AU 2.9919574 × 10^15
25 AU 3.7399468 × 10^15
30 AU 4.4879361 × 10^15
40 AU 5.9839148 × 10^15
50 AU 7.4798935 × 10^15
75 AU 1.121984 × 10^16
100 AU 1.4959787 × 10^16
250 AU 3.7399468 × 10^16
500 AU 7.4798935 × 10^16
1,000 AU 1.4959787 × 10^17

How the conversion works

The relationship is mm = AU × 149,597,870,700,000. Both units measure length, so the conversion is a fixed factor that never changes.

Common questions

How many millimeters are in one astronomical unit?
One astronomical unit equals 149,597,870,000,000 millimeters. mm = AU × 149,597,870,700,000.
How do you convert astronomical units to millimeters?
Use mm = AU × 149,597,870,700,000. So 10 AU is 1.4959787 × 10^15 mm.
How many astronomical units are in one millimeter?
One millimeter equals 6.685 × 10^-15 astronomical units, 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