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Kilometers to astronomical units

Convert kilometers to astronomical units, with the math shown step by step.

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Astronomical units
0.67 au

100,000,000 km = 0.67 au

Also equals

How it works

au = km ÷ 149,597,870.7

One astronomical unit is exactly 149,597,870.7 kilometers, so dividing by 149,597,870.7 turns kilometers into astronomical units. For example, 225,000,000 km is about 1.504 au.

  1. Divide by 149,597,870.7 100,000,000 ÷ 149,597,870.7 = 0.67 au

Nearby values

Kilometers Astronomical units Light-years Parsecs
70,000,000 km 0.47 au 0.0000074 0.00000227
80,000,000 km 0.53 au 0.00000846 0.00000259
90,000,000 km 0.6 au 0.00000951 0.00000292
100,000,000 km 0.67 au 0.0000106 0.00000324
110,000,000 km 0.74 au 0.0000116 0.00000356
120,000,000 km 0.8 au 0.0000127 0.00000389
130,000,000 km 0.87 au 0.0000137 0.00000421

Printed from rocketcalc.io/astronomy/km-to-au/100000000