Astronomical Units to Kilometers Converter

Enter a value to calculate the result instantly and free of charge.

AU
149,597,870.7km

1 AU = 149,597,870.7 km

Conversion summary

1 AU = 149,597,870.7 km

Formula
Kilometer = Astronomical Unit × 149,597,870.7
Category
Length
Units
AU → km

1 AU in other units

Values update with the converter above. Select a row to open that conversion's detailed page.

Metric

  • Meter149,597,900,000 m
  • Kilometer149,597,900 km
  • Centimeter14,959,790,000,000 cm
  • Decimeter1,495,979,000,000 dm
  • Millimeter149,597,900,000,000 mm
  • Micrometer1.49598E17 µm
  • Nanometer1.49598E20 nm
  • Picometer1.49598E23 pm

US / Imperial

  • Foot490,806,700,000 ft
  • Inch5,889,680,000,000 in
  • Yard163,602,200,000 yd
  • Mile92,955,810 mi
  • Scandinavian mile14,959,790 mil
  • Furlong743,646,500 fur
  • Nautical mile80,776,390 nmi
  • Fathom81,801,110,000 ftm

Traditional and regional

  • Arshin219,996,900,000 arshin
  • Endaze230,150,600,000 endaze
  • Byzantine Foot475,215,600,000 pus
  • Byzantine Fathom79,202,600,000 orgyia
  • Cig449,242,900,000 cig

Scientific

  • Light-year0.00001581251 ly
  • Parsec0.000004848137 pc
  • Angstrom1.49598E21 Å

How do you convert astronomical units to kilometers?

To convert astronomical units to kilometers, multiply the number of astronomical units by 149,597,870.7. 1 AU = 149,598,000 km.

Conversion formula

Kilometer = Astronomical Unit × 149,597,870.7

Astronomical Units to kilometers conversion table

Astronomical Units (AU)Kilometers (km)
0.5 AU74,798,900 km
1 AU149,598,000 km
2 AU299,196,000 km
5 AU747,989,000 km
10 AU1.4960e+9 km
30 AU4.4879e+9 km
40 AU5.9839e+9 km

What is Astronomical Unit?

Astronomical Unit is a length unit used to express distance, size or travel range in practical measurement work.

Short history of Astronomical Unit

Astronomical Unit became established as a practical length unit in technical, commercial or scientific use.

Open the Astronomical Unit unit guide

What is Kilometer?

The kilometer is a unit of length equal to 1,000 meters. It is commonly used for roads, cities and geographical distances.

Short history of Kilometer

The kilometer emerged naturally within the decimal metric system and became a standard way to express larger terrestrial distances.

Open the Kilometer unit guide

Frequently asked questions

What is 1 Astronomical Unit in Kilometer?

1 AU = 149,597,870.7 km. Enter another value in the converter to calculate its equivalent instantly.

How do you convert Astronomical Unit to Kilometer?

To convert astronomical units to kilometers, multiply the number of astronomical units by 149,597,870.7. 1 AU = 149,598,000 km.

How precise are the results?

Conversion results are calculated to 12 significant figures. Very large or very small values are shown in scientific notation.

Is the Astronomical Unit to Kilometer converter free?

Yes. The conversion tool on BirimCeviri.app is free and requires no sign-up.

Length conversion tools

Browse every converter in this group: Length Units and Conversions.

Reverse conversion

Kilometers to astronomical units converter

Related conversions

Frequently asked questions

How many kilometers are in 1 astronomical unit?

1 AU = 149,598,000 km.

How do you convert astronomical units to kilometers?

To convert astronomical units to kilometers, multiply the number of astronomical units by 149,597,870.7. 1 AU = 149,598,000 km.

How many astronomical units are in 1 kilometer?

1 km = 6.6846e-9 AU.

Sources

The definitions and conversion relationships on this page are aligned with standard metrology and SI reference material.

  1. BIPM: The International System of Units (SI Brochure)
  2. NIST: SI Units – Length
  3. NIST: Guide for the Use of the International System of Units

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