# Miles to Parsecs (mi to pc)

Source: https://www.unitconvertercalculator.com/length/miles-to-parsecs/

**1 mi = 5.2155287047916E-14 pc**

One mile equals approximately 5.216 x 10-14 parsecs. A parsec (about 19.17 trillion miles) measures interstellar distances. The mile is Earth's road unit; the parsec is the astronomer's standard. About 13 orders of magnitude separate them.

## Formula

Convert Miles to Parsecs

## Conversion Table

| Miles (mi) | Parsecs (pc) |
|---|---|
| 1 mi | 5.215528E-14 pc |
| 100 mi | 5.2155287E-12 pc |
| 10000 mi | 5.2155287047E-10 pc |
| 1000000 mi | 5.215528704791E-8 pc |
| 100000000 mi | 5.2155287047915E-6 pc |
| 10000000000 mi | 0.00052155287047916 pc |
| 1000000000000 mi | 0.052155287047916 pc |
| 100000000000000 mi | 5.2155287047916 pc |

## Units

### Mile (mi)

An imperial unit of length equal to 5,280 feet or approximately 1.609 kilometers. The standard unit for road distances in the US and UK.

### 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.

## Background

Proxima Centauri at 1.3 parsecs is about 24.9 trillion miles. The Milky Way at 30,660 parsecs across is about 588 quadrillion miles. Professional astronomers never use miles, but Americans contextualizing stellar distances often convert to miles first.

## Good to Know

The mile is America's unit. The parsec is astronomy's unit. Americans contextualizing '4.24 light-years to the nearest star' convert it to '24.9 trillion miles' to feel the distance viscerally. The mile provides intuition; the parsec provides precision. Both have their place.

## FAQ

### How many parsecs is 1 mile?

One mile equals approximately 5.216 x 10-14 parsecs.

### How many miles are in 1 parsec?

One parsec contains approximately 1.917 x 1013 miles (about 19.2 trillion).

### Is the mile used in astronomy?

Never professionally. American popular science sometimes expresses distances in miles for public understanding, but all professional astronomical work uses parsecs (or light-years).

## Non-Frequently Asked Questions

### How many parsecs has humanity's farthest spacecraft traveled?

Voyager 1 has traveled about 14.8 billion miles since 1977. That is about 7.72 x 10-4 parsecs (0.077% of 1 parsec). After 48 years, Voyager has barely scratched the first parsec. Interstellar travel is hard.

### If the Milky Way were a highway, how many lanes wide would it be?

The Milky Way is about 30,660 parsecs (588 quadrillion miles) across. A highway lane is about 12 feet (0.00227 miles). The Milky Way would be about 2.59 x 1017 lanes wide (259 quadrillion lanes). Traffic would still be terrible.

### How many road trips to the Sun equal 1 parsec?

Sun distance: 93 million miles. 1 parsec: 19.17 trillion miles. That is about 206,265 trips to the Sun. If you drove to the Sun and back every day, it would take 564 years to cover 1 parsec. The Sun is close; parsecs are not.

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## See Also

- [Parsecs to Miles](https://www.unitconvertercalculator.com/length/parsecs-to-miles/)