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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
6.68 au

1,000,000,000 km = 6.68 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 1,000,000,000 ÷ 149,597,870.7 = 6.68 au

Nearby values

Kilometers Astronomical units Light-years Parsecs
970,000,000 km 6.48 au 0.000103 0.0000314
980,000,000 km 6.55 au 0.000104 0.0000318
990,000,000 km 6.62 au 0.000105 0.0000321
1,000,000,000 km 6.68 au 0.000106 0.0000324
1,010,000,000 km 6.75 au 0.000107 0.0000327
1,020,000,000 km 6.82 au 0.000108 0.0000331
1,030,000,000 km 6.89 au 0.000109 0.0000334

Printed from rocketcalc.io/astronomy/km-to-au/1000000000