Astronomical units to kilometers
Type a value in AU to get it in km instantly.
149,597,900km
That's about the same as the Sun. Light takes about 8.317 minutes to cross it.
Convert the other way: km to AU
What it means
How far is that?
One astronomical unit is defined as exactly 149,597,870,700 m, and a light-year uses the Julian year of 365.25 days.
The math
How to convert AU to km
To convert astronomical units to kilometers, multiply by 149,598,000.
Example: 1 AU × 149,598,000 = 149,598,000 km.
In the other direction, 1 km = 6.685×10⁻⁹ AU.
Every unit
Your distance in every unit
Tables
AU to km conversion table
| AU | km |
|---|---|
| 0.1 AU | 14,959,800 km |
| 0.5 AU | 74,798,900 km |
| 1 AU | 149,598,000 km |
| 2 AU | 299,196,000 km |
| 5 AU | 747,989,000 km |
| 10 AU | 1.496×10⁹ km |
| 25 AU | 3.74×10⁹ km |
| 50 AU | 7.48×10⁹ km |
| 100 AU | 1.496×10¹⁰ km |
| 500 AU | 7.48×10¹⁰ km |
| 1,000 AU | 1.496×10¹¹ km |
km to AU conversion table
| km | AU |
|---|---|
| 0.1 km | 6.685×10⁻¹⁰ AU |
| 0.5 km | 3.342×10⁻⁹ AU |
| 1 km | 6.685×10⁻⁹ AU |
| 2 km | 1.337×10⁻⁸ AU |
| 5 km | 3.342×10⁻⁸ AU |
| 10 km | 6.685×10⁻⁸ AU |
| 25 km | 1.671×10⁻⁷ AU |
| 50 km | 3.342×10⁻⁷ AU |
| 100 km | 6.685×10⁻⁷ AU |
| 500 km | 3.342×10⁻⁶ AU |
| 1,000 km | 6.685×10⁻⁶ AU |
Quick answers
Quick answers
- How many km is 1 AU?
- 1 AU is 149,598,000 km.
- How many km is 10 AU?
- 10 AU is 1.496×10⁹ km.
The units
About these units
Astronomical units (AU)
The Earth–Sun distance, fixed at 149,597,870,700 m. The ruler of the solar system.
Kilometers (km)
Kilometers, which run out of usefulness beyond the planets.
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