Parsec Converter - Convert pc, ly, AU, km & More Astronomical Units
Result:
1 pc = 3.261598e+0 ly
How Parsec Conversion Works
Input Distance
Enter astronomical distance value
Select Units
Choose from and to units
Convert
Apply conversion formula
Conversion Formulas
Parsec to Light Year:
ly = pc × 3.26156
1 pc = 3.0857×10¹⁶ m ÷ 9.4607×10¹⁵ m/ly
Parsec to AU:
AU = pc × 206,265
1 pc = 3.0857×10¹⁶ m ÷ 1.496×10¹¹ m/AU
Light Year to Parsec:
pc = ly × 0.3066
1 ly = 9.4607×10¹⁵ m ÷ 3.0857×10¹⁶ m/pc
AU to Parsec:
pc = AU × 4.848×10⁻⁶
1 AU = 1.496×10¹¹ m ÷ 3.0857×10¹⁶ m/pc
Parsec Conversion Table
| Parsec (pc) | Light Year (ly) | AU | Kilometer (km) | Mile (mi) |
|---|---|---|---|---|
| 0.1 | 0.33 | 20,626.5 | 3.09e+12 | 1.92e+12 |
| 0.5 | 1.63 | 103,132.5 | 1.54e+13 | 9.59e+12 |
| 1 | 3.26 | 206,265 | 3.09e+13 | 1.92e+13 |
| 2 | 6.52 | 412,530 | 6.17e+13 | 3.83e+13 |
| 5 | 16.31 | 1,031,325 | 1.54e+14 | 9.59e+13 |
| 10 | 32.62 | 2,062,650 | 3.09e+14 | 1.92e+14 |
| 20 | 65.23 | 4,125,300 | 6.17e+14 | 3.83e+14 |
| 50 | 163.08 | 10,313,250 | 1.54e+15 | 9.59e+14 |
| 100 | 326.16 | 20,626,500 | 3.09e+15 | 1.92e+15 |
| 200 | 652.31 | 41,253,000 | 6.17e+15 | 3.83e+15 |
| 500 | 1630.78 | 103,132,500 | 1.54e+16 | 9.59e+15 |
| 1000 | 3261.56 | 206,265,000 | 3.09e+16 | 1.92e+16 |
| 2000 | 6523.12 | 412,530,000 | 6.17e+16 | 3.83e+16 |
| 5000 | 16307.80 | 1,031,325,000 | 1.54e+17 | 9.59e+16 |
| 10000 | 32615.60 | 2,062,650,000 | 3.09e+17 | 1.92e+17 |
Astronomical Distance Units Progression Chart
0.1 pc
1 pc
5 pc
10 pc
50 pc
100 pc
Practice Problems
Problem 1:
Convert 5 parsecs to light years
Solution: 5 × 3.26156 = 16.31 light years
Problem 2:
Convert 10 light years to parsecs
Solution: 10 × 0.3066 = 3.066 parsecs
Problem 3:
Convert 1 parsec to AU
Solution: 1 × 206,265 = 206,265 AU
Problem 4:
Convert 500,000 AU to parsecs
Solution: 500,000 × 4.848×10⁻⁶ = 2.424 parsecs
Problem 5:
Convert 2.5 parsecs to kilometers
Solution: 2.5 × 3.0857×10¹³ = 7.714×10¹³ km
Daily Uses of Parsec Measurements
Astronomers measure distances to nearby stars using parallax method
Space missions calculate travel times to distant celestial objects
Astrophotographers determine field of view for deep space imaging
Planetarium software converts between different astronomical distance units
Navigation systems for interstellar spacecraft use parsec measurements