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Convert Astronomical Unit to Kilometer

1 astronomical unit = 149,597,870 kilometers (AU to km).

The astronomical unit (AU) and the kilometer (km) both measure length. A astronomical unit is larger than a kilometer — one astronomical unit contains 149,598,000 kilometers. Going the other way, one kilometer is 6.68459e-9 astronomical units. The converter above does this in real time, and the reference chart lists the values that come up most often.

149,597,870

1 AU = 149,597,870 km

How to convert Astronomical Units to Kilometers

Multiply the astronomical unit value by 149,598,000 to get kilometers.

Example: 10 astronomical units = 1,495,980,000 kilometers.

Astronomical Unit to Kilometer Conversion Chart

Astronomical UnitsKilometers
1 AU149,597,870 km
2 AU299,195,740 km
3 AU448,793,610 km
5 AU747,989,350 km
10 AU1,495,978,700 km
20 AU2,991,957,400 km
25 AU3,739,946,800 km
50 AU7,479,893,500 km
100 AU14,959,787,000 km
1000 AU149,597,870,000 km

Frequently Asked Questions

How many kilometers are in a astronomical unit?
There are 149,597,870 kilometers in 1 astronomical unit.
How do you convert astronomical units to kilometers?
Multiply the astronomical unit value by 149,598,000 to get kilometers.
What is 5 astronomical units in kilometers?
5 astronomical units equals 747,989,350 kilometers.
What is 100 astronomical units in kilometers?
100 astronomical units equals 14,959,787,000 kilometers.
What is 1 kilometer in astronomical units?
1 kilometer equals 6.6845871e-9 astronomical units.
Is this astronomical unit to kilometer converter free?
Yes. The converter is free, needs no sign-up, and runs entirely in your browser — the values you enter never leave your device.

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