Astronomical Units to Kilometers

1 au = 149,597,900 km

How to convert astronomical units to kilometers

km = au × 149,597,900

Example: 5 au = 747,989,400 km

Astronomical Units to Kilometers conversion table

Astronomical Units (au)Kilometers (km)
1 au149,597,900 km
2 au299,195,700 km
3 au448,793,600 km
4 au598,391,500 km
5 au747,989,400 km
6 au897,587,200 km
7 au1,047,185,000 km
8 au1,196,783,000 km
9 au1,346,381,000 km
10 au1,495,979,000 km
15 au2,243,968,000 km
20 au2,991,957,000 km
25 au3,739,947,000 km
30 au4,487,936,000 km
40 au5,983,915,000 km
50 au7,479,894,000 km
75 au11,219,840,000 km
100 au14,959,790,000 km
250 au37,399,470,000 km
500 au74,798,940,000 km
1,000 au149,597,900,000 km

About the units

Astronomical Units: The astronomical unit is defined as exactly 149,597,870,700 meters, roughly the average distance from Earth to the Sun.

Kilometers: The kilometer is a metric unit of length equal to 1,000 meters.

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Frequently asked questions

How many kilometers are in 1 astronomical unit?

1 astronomical unit equals 149,597,900 kilometers.

How many astronomical units are in 1 kilometer?

1 kilometer equals 6.68459E-9 astronomical units.

How do I convert astronomical units to kilometers?

Use the formula km = au × 149,597,900.

What is 10 astronomical units in kilometers?

10 astronomical units equals 1,495,979,000 kilometers.

Related conversions

Factors: NIST SP 811 · SI Brochure · NIST Handbook 44 — Updated