How many inches are in 1 AU?

One AU contains approximately 5.890 x 1012 inches (about 5.9 trillion). This derives from 1 AU = 149,597,870,700 meters x 39.3701 inches/meter.

How far is the Moon in inches?

The Moon is approximately 15.13 billion inches (384,400 km) from Earth, which is about 0.00257 AU. Even the Moon distance is an enormous number of inches.

Why would anyone express AU in inches?

Only for educational purposes to illustrate scale. The inch works perfectly for screen sizes and woodworking, but numbers in the trillions make it impractical for astronomy. This conversion helps demonstrate why different units exist.

Astronomical Units to Inches (au to in) Converter

1 au = 5,889,680,000,000 in

1 Astronomical Unit equals 5,889,680,000,000 Inches (1 au = 5,889,680,000,000 in). Convert Astronomical Units to Inches with formula, table, and examples.

One astronomical unit equals approximately 5.890 x 10¹² inches, or about 5.9 trillion inches. This conversion expresses the Earth-Sun distance in the familiar American unit used for screen sizes, ruler markings, and small measurements. The enormous number makes clear why inches are not used for astronomical distances.

How to Convert Astronomical Units to Inches

in = au × 5,889,680,000,000

Multiply the value in Astronomical Units by 5,889,680,000,000

Take your value in Astronomical Units
Multiply by 5,889,680,000,000
Read the result in Inches

Common Astronomical Units to Inches Conversions

Astronomical Units (au)	Inches (in)	Status
1 × 10⁻¹³ au	0.589 in
1 × 10⁻¹² au	5.8897 in
1 × 10⁻¹¹ au	58.8968 in
1 × 10⁻¹⁰ au	588.968 in
1 × 10⁻⁹ au	5,889.6799 in
1 × 10⁻⁸ au	58,896.7995 in
1 × 10⁻⁷ au	588,967.9949 in
0.000001 au	5,889,679.9488 in
0.00001 au	58,896,799.4882 in
0.0001 au	588,967,994.8819 in
0.001 au	5,889,679,948.8189 in

Good to Know About Astronomical Units to Inches Conversion

Americans measure TVs in inches and planetary distances in miles or AU. The 5.9-trillion-inch Earth-Sun distance shows why we need different units for different scales. No one wants to describe their TV as '0.00000000000094 AU diagonal.'

Astronomical Units to Inches: What You Need to Know

The Earth-Sun distance is about 5.89 trillion inches. A 55-inch TV screen is 9.34 x 10^-12 AU across. The diameter of Earth (about 502 million inches) is only 0.0000852 AU. These comparisons show how the inch, perfect for human-scale objects, becomes useless at planetary scales.

What is a Astronomical Unit? au

Exactly 149,597,870,700 meters by IAU 2012 definition. Roughly the average distance from the Earth to the Sun. Used for distances within our solar system.

Astronomical solar system distances astronomy planetary science

Learn more about Astronomical Unit →

What is a Inch? in

An imperial unit of length equal to exactly 2.54 centimeters. Commonly used in the US and UK for screen sizes, body measurements, and construction.

Imperial Us-customary screen sizes construction (US) body measurements

Learn more about Inch →

Going the other way? Use our Inches to Astronomical Units converter.

Astronomical Units to Inches FAQ

One AU contains approximately 5.890 x 10¹² inches (about 5.9 trillion). This derives from 1 AU = 149,597,870,700 meters x 39.3701 inches/meter.
The Moon is approximately 15.13 billion inches (384,400 km) from Earth, which is about 0.00257 AU. Even the Moon distance is an enormous number of inches.
Only for educational purposes to illustrate scale. The inch works perfectly for screen sizes and woodworking, but numbers in the trillions make it impractical for astronomy. This conversion helps demonstrate why different units exist.

Non-Frequently Asked Questions About Astronomical Units to Inches

Questions nobody should ask - but someone did.

About 5.89 trillion inches. If you laid inch-worms end to end (each about 1 inch long), you would need 5.89 trillion of them. The caterpillar highway to the Sun is not in any infrastructure budget.