Astronomical units to Kilometers
1 au ≈ 149,600,000 km. Edit either value to convert instantly.
Conversion formula
km = au × (1.495978707 × 10¹¹) × (0.001)1 au ≈ 149,598,000 km
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
kilometer (km)
One kilometer equals exactly 1,000 m.
Source: BIPM SI Brochure, 9th edition — SI prefixes and accepted non-SI units
Conversion table
| au | km |
|---|---|
| ≈ 149,598,000 | |
| ≈ 299,196,000 | |
| ≈ 747,989,000 | |
| ≈ 1.49598 × 10⁹ | |
| ≈ 2.24397 × 10⁹ | |
| ≈ 2.99196 × 10⁹ | |
| ≈ 3.73995 × 10⁹ | |
| ≈ 4.48794 × 10⁹ | |
| ≈ 5.98391 × 10⁹ | |
| ≈ 6.7319 × 10⁹ |
| au | km |
|---|---|
| ≈ 7.47989 × 10⁹ | |
| ≈ 8.97587 × 10⁹ | |
| ≈ 1.04719 × 10¹⁰ | |
| ≈ 1.19678 × 10¹⁰ | |
| ≈ 1.34638 × 10¹⁰ | |
| ≈ 1.49598 × 10¹⁰ | |
| ≈ 2.24397 × 10¹⁰ | |
| ≈ 2.39357 × 10¹⁰ | |
| ≈ 2.54316 × 10¹⁰ | |
| ≈ 2.69276 × 10¹⁰ |
Frequently asked questions
How many kilometers are in 1 astronomical unit?
1 au ≈ 149,600,000 km. km = au × (1.495978707 × 10¹¹) × (0.001)
How do I convert au to km?
km = au × (1.495978707 × 10¹¹) × (0.001)
Is 1 astronomical unit bigger than 1 kilometer?
1 au ≈ 149,600,000 km.
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