How many kilometers are in 1 parsec?

One parsec contains approximately 3.086 x 1013 km (about 30.86 trillion).

How many parsecs is 1 kilometer?

One kilometer equals approximately 3.241 x 10-14 parsecs.

How far is the nearest star in km?

Proxima Centauri at 1.3 pc is about 40.1 trillion km from Earth.

Parsecs to Kilometers (pc to km) Converter

1 pc = 30,856,800,000,000 km

1 Parsec equals 30,856,800,000,000 Kilometers (1 pc = 30,856,800,000,000 km). Convert Parsecs to Kilometers with formula, table, and examples.

One parsec equals approximately 3.086 x 10¹³ kilometers (about 30.86 trillion km). This is one of the most important astronomical conversions, connecting the standard metric road unit with the professional stellar distance unit.

How to Convert Parsecs to Kilometers

km = pc × 30,856,800,000,000

Multiply the value in Parsecs by 30,856,800,000,000

Take your value in Parsecs
Multiply by 30,856,800,000,000
Read the result in Kilometers

Common Parsecs to Kilometers Conversions

Parsecs (pc)	Kilometers (km)	Status
0.001 pc	30,856,775,814.9137 km
0.01 pc	308,567,758,149.1367 km
0.1 pc	3,085,680,000,000 km
0.5 pc	15,428,400,000,000 km
1 pc	30,856,800,000,000 km
1.3 pc	40,113,800,000,000 km
2 pc	61,713,600,000,000 km
5 pc	154,284,000,000,000 km
10 pc	308,568,000,000,000 km
100 pc	3.08568 × 10¹⁵ km
1,000 pc	3.08568 × 10¹⁶ km
10,000 pc	3.08568 × 10¹⁷ km
30,000 pc	9.25703 × 10¹⁷ km
770,000 pc	2.37597 × 10¹⁹ km

Good to Know About Parsecs to Kilometers Conversion

The kilometer is the metric world's road unit. The parsec is the metric world's star unit. Both are metric (defined from meters). The ratio of 3 x 10¹³ between them is the distance from your car's odometer to the Milky Way's diameter. One metric system, two scales, one universe.

Parsecs to Kilometers: What You Need to Know

1 pc = 30.86 trillion km. Proxima Centauri at 1.3 pc is about 40.1 trillion km. The Milky Way at 30,660 pc is about 946 quadrillion km across. Converting parsecs to km makes stellar distances feel real by expressing them in the unit people use daily.

What is a Parsec? pc

The distance at which one astronomical unit subtends an angle of one arcsecond. Approximately 3.26 light-years or 30.857 trillion kilometers. The standard unit in professional astronomy.

Astronomical professional astronomy galactic distances

Learn more about Parsec →

What is a Kilometer? km

A metric unit of length equal to 1000 meters. The standard unit for measuring road distances and geographic distances in most countries.

Metric road distances geography running

Learn more about Kilometer →

Going the other way? Use our Kilometers to Parsecs converter.

Parsecs to Kilometers FAQ

One parsec contains approximately 3.086 x 10¹³ km (about 30.86 trillion).
One kilometer equals approximately 3.241 x 10^-14 parsecs.
Proxima Centauri at 1.3 pc is about 40.1 trillion km from Earth.

Non-Frequently Asked Questions About Parsecs to Kilometers

Questions nobody should ask - but someone did.

Earth's circumference is about 40,075 km. 1 parsec (30.86 trillion km) = about 770 million laps. If you drove around the world once per day, it would take 2.1 million years. 1 parsec of road trips would outlast Homo sapiens as a species.
Global road network: about 64 million km. 1 parsec = 30.86 trillion km. All roads = about 2.07 x 10^-6 parsecs (two millionths). Humanity's entire road system reaches two millionths of the nearest parsec. We have not built enough road to matter stellarly.
Light travels 9.461 trillion km per year. 1 parsec is 30.86 trillion km. So light covers 1 parsec in 30.86/9.461 = 3.262 years. This is why 1 parsec = 3.26 light-years. The km-to-parsec conversion proves the parsec-to-light-year relationship.