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Astronomical unit to Kilometer
Convert Astronomical unit to Kilometer and get the exact value instantly.
About this conversion
To convert Astronomical unit to Kilometer, multiply the number of Astronomical unit by 149597870.7.
Length units straddle the metric and imperial systems, so everyday jobs (measuring a room, reading a map, or following a recipe from another country) often need a quick conversion between meters, feet, miles and inches.
Conversion table
| Astronomical unit (AU) | Kilometer (km) |
|---|---|
| 1 AU | 149597870.7 km |
| 2 AU | 299195741.4 km |
| 5 AU | 747989353.5 km |
| 10 AU | 1495978707 km |
| 100 AU | 14959787070 km |
How to use this converter
- Enter your Astronomical unit value
Type any number into the Astronomical unit field. It starts at 1 so you can read the rate straight away.
- Read the Kilometer result
The amount in Kilometer updates as you type, so there is no button to press and nothing to wait for.
- Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.
Frequently asked
- How many Kilometer are in one Astronomical unit?
- One Astronomical unit equals 149597870.7 km. Enter any amount above to get an exact figure for your own value.
- Is this converter accurate?
- Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
- Do you upload the numbers I enter?
- No. The Astronomical unit to Kilometer conversion runs entirely in your browser tab, and nothing you type is sent to a server.
- Does it work on my phone?
- Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.
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