Parsec to Light-year (pc → ly)
Convert parsec to light-year instantly. The conversion factor is approximate to engineering precision.
Realtime·length·astronomical
Approx
pc
× 3.2616
ly
3.2616
Precision [auto]
6
📐pc to ly formulaApprox.
ly = pc × 3.261563777167
Inverse: pc = ly × 0.306601393786
Worked example: 1 pc = 3.261563777167 ly
ℹ️About these units
Parsec (pc)
Source: IAU 2015 definition (exact in arcsec).
Light-year (ly)
Source: IAU: 1 ly = 365.25 d × c (exact).
📊Reference table: pc → ly
| Parsec (pc) | Light-year (ly) |
|---|---|
| 1 | 3.2616 |
| 2 | 6.5231 |
| 5 | 16.3078 |
| 10 | 32.6156 |
| 15 | 48.9235 |
| 20 | 65.2313 |
| 25 | 81.5391 |
| 50 | 163.0782 |
| 100 | 326.1564 |
| 250 | 815.3909 |
| 500 | 1,630.78 |
| 750 | 2,446.17 |
| 1,000 | 3,261.56 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=parsec&to=light-yearEmbed this converter
<div data-convertnavi="parsec->light-year"></div>
<script async src="https://convertnavi.com/embed.js"></script>