Astronomical units to Millimeters
1 au ≈ 1.496 × 10¹⁴ mm. Edit either value to convert instantly.
Conversion formula
mm = au × (1.495978707 × 10¹¹) × (1,000)1 au ≈ 1.49598 × 10¹⁴ mm
astronomical unit (au)
One astronomical unit equals exactly 1.495978707 × 10¹¹ m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
millimeter (mm)
One millimeter equals exactly 0.001 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| au | mm |
|---|---|
| ≈ 1.49598 × 10¹⁴ | |
| ≈ 2.99196 × 10¹⁴ | |
| ≈ 7.47989 × 10¹⁴ | |
| ≈ 1.49598 × 10¹⁵ | |
| ≈ 2.24397 × 10¹⁵ | |
| ≈ 2.99196 × 10¹⁵ | |
| ≈ 3.73995 × 10¹⁵ | |
| ≈ 4.48794 × 10¹⁵ | |
| ≈ 5.98391 × 10¹⁵ | |
| ≈ 6.7319 × 10¹⁵ |
| au | mm |
|---|---|
| ≈ 7.47989 × 10¹⁵ | |
| ≈ 8.97587 × 10¹⁵ | |
| ≈ 1.04719 × 10¹⁶ | |
| ≈ 1.19678 × 10¹⁶ | |
| ≈ 1.34638 × 10¹⁶ | |
| ≈ 1.49598 × 10¹⁶ | |
| ≈ 2.24397 × 10¹⁶ | |
| ≈ 2.39357 × 10¹⁶ | |
| ≈ 2.54316 × 10¹⁶ | |
| ≈ 2.69276 × 10¹⁶ |
Frequently asked questions
How many millimeters are in 1 astronomical unit?
1 au ≈ 1.496 × 10¹⁴ mm. mm = au × (1.495978707 × 10¹¹) × (1,000)
How do I convert au to mm?
mm = au × (1.495978707 × 10¹¹) × (1,000)
Is 1 astronomical unit bigger than 1 millimeter?
1 au ≈ 1.496 × 10¹⁴ mm.
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