How many nanometers are in 1 AU?

One AU contains approximately 1.496 x 1020 nm (about 150 quintillion).

Is this conversion used?

Not directly. But spacecraft navigation chips built at nm-scale guide missions across AU-scale distances.

Nanometers to Astronomical Units (nm to au) Converter

Q: How many AU is 1 nanometer?

One nanometer equals approximately 6.685 x 10-21 AU.

1 nm = 6.68459 × 10⁻²¹ au

1 Nanometer equals 6.68459 × 10⁻²¹ Astronomical Units (1 nm = 6.68459 × 10⁻²¹ au). Convert Nanometers to Astronomical Units with formula, table, and examples.

One nanometer equals approximately 6.685 x 10^-21 astronomical units. The AU (149.6 trillion nm) measures planetary distances; the nanometer measures transistors and DNA. About 20 orders of magnitude separate them.

How to Convert Nanometers to Astronomical Units

au = nm ÷ 1.49598 × 10²⁰

Divide the value in Nanometers by 1.49598 × 10²⁰

Take your value in Nanometers
Divide by 1.49598 × 10²⁰
Read the result in Astronomical Units

Common Nanometers to Astronomical Units Conversions

Nanometers (nm)	Astronomical Units (au)	Status
1 nm	0 au
100 nm	6.6 × 10⁻¹⁹ au
10,000 nm	6.684 × 10⁻¹⁷ au
1,000,000 nm	6.68458 × 10⁻¹⁵ au
100,000,000 nm	6.68459 × 10⁻¹³ au
10,000,000,000 nm	6.68459 × 10⁻¹¹ au
1,000,000,000,000 nm	6.68459 × 10⁻⁹ au
100,000,000,000,000 nm	6.68459 × 10⁻⁷ au
1 × 10¹⁶ nm	0.0001 au
1 × 10¹⁸ nm	0.0067 au

Good to Know About Nanometers to Astronomical Units Conversion

The nanometer builds the spacecraft. The AU is where the spacecraft goes. Every Mars rover contains billions of 3 nm transistors that navigate 0.5-2.5 AU of interplanetary space. The smallest human technology crosses the largest human distances.

Nanometers to Astronomical Units: What You Need to Know

1 AU = 1.496 x 10²⁰ nm. A 3 nm transistor is 2 x 10^-20 AU. The technology that navigates spacecraft to AU-scale destinations is built from nm-scale components.

What is a Nanometer? nm

One billionth of a meter. Used to measure wavelengths of light, semiconductor chip features, and molecular structures.

Metric semiconductor manufacturing optics nanotechnology

Learn more about Nanometer →

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 →

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

Nanometers to Astronomical Units FAQ

One nanometer equals approximately 6.685 x 10^-21 AU.
One AU contains approximately 1.496 x 10²⁰ nm (about 150 quintillion).
Not directly. But spacecraft navigation chips built at nm-scale guide missions across AU-scale distances.

Non-Frequently Asked Questions About Nanometers to Astronomical Units

Questions nobody should ask - but someone did.

At 3 nm per transistor, about 4.99 x 10¹⁹ transistors span 1 AU (about 50 quintillion). All transistors ever made (roughly 10²²) would span about 200 AU - past Voyager 1's current position. Humanity has made enough transistors to reach interstellar space, just not in a useful configuration.
DNA is 2.5 nm wide. 1 AU = 1.496 x 10²⁰ nm. That is about 5.98 x 10¹⁹ DNA widths. But uncoiled DNA from one cell is 2 m long. So about 74.8 billion cells' worth of DNA spans 1 AU. Your body has 37 trillion cells - enough DNA to span 493 AU, well past Pluto.
A virus (100 nm) traveling 1 AU would need to cross 1.496 x 10¹⁸ of its own body-lengths. The UV radiation at 1 AU would destroy it in seconds. Viruses are nanometer structures optimized for biology, not space travel. They are impressive engineers but terrible astronauts.