How to convert millimeters to astronomical units
1 millimeter is equal to 6.684587122 × 10⁻¹⁵ astronomical units, and 1 astronomical unit is equal to 149,597,870,700,000 millimeters. To convert, multiply by the conversion factor:
astronomical units = millimeters × 6.684587122 × 10⁻¹⁵
astronomical units = millimeters ÷ 149,597,870,700,000Example: convert 1 mm to au: 1 × 6.684587122 × 10⁻¹⁵ = 6.684587122 × 10⁻¹⁵ au.
Millimeter to Astronomical Unit conversion table
| Millimeter (mm) | Astronomical Unit (au) |
|---|---|
| 0.01 mm | 6.684587122 × 10⁻¹⁷ au |
| 0.1 mm | 6.684587122 × 10⁻¹⁶ au |
| 1 mm | 6.684587122 × 10⁻¹⁵ au |
| 2 mm | 1.336917424 × 10⁻¹⁴ au |
| 3 mm | 2.005376137 × 10⁻¹⁴ au |
| 5 mm | 3.342293561 × 10⁻¹⁴ au |
| 10 mm | 6.684587122 × 10⁻¹⁴ au |
| 20 mm | 1.336917424 × 10⁻¹³ au |
| 50 mm | 3.342293561 × 10⁻¹³ au |
| 100 mm | 6.684587122 × 10⁻¹³ au |
| 250 mm | 1.671146781 × 10⁻¹² au |
| 500 mm | 3.342293561 × 10⁻¹² au |
| 1,000 mm | 6.684587122 × 10⁻¹² au |
About the millimeter
A millimeter is one thousandth of a meter. It's the standard unit in engineering drawings, manufacturing, rainfall and screen and paper sizes.
Symbol: mm · 1 mm = 0.001 m · Category: Metric (SI)
About the astronomical unit
The astronomical unit is exactly 149,597,870,700 m, roughly the average distance from Earth to the Sun. It's used for distances within the solar system.
Symbol: au · 1 au = 149,597,870,700 m · Category: Astronomical