Lightyears to Parsecs (ly to pc)

Parsecs to Lightyears (Swap Units)


Note: Fractional results are rounded to the nearest 1/64. For a more accurate answer please select 'decimal' from the options above the result.

Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.

Note: For a pure decimal result please select 'decimal' from the options above the result.

Show formula

Lightyears to Parsecs formula

pc =
ly * 0.30660
Show working
Show result in exponential format
More information: Parsecs


A lightyear is the distance that light travels in one year. Since there are various definitions for the length of a year, there are correspondingly slightly different values for a lightyear. One lightyear corresponds to about 9.461e15 m, 5.879e12 mi, or 63239.7 AU, or 0.3066 pc.


Lightyears to Parsecs formula

pc =
ly * 0.30660


The parsec is a unit of length equivalent to around 20 trillion (20,000,000,000,000) miles, 31 trillion kilometres, or 206,264 times the distance from the earth to the sun.

A parsec is also equivalent to approximately 3.26 light years (the journey distance if you travelled at the speed of light for three years and three months).


Lightyears to Parsecs table

Print table
< Smaller Values Larger Values >
Lightyears Parsecs
0ly 0.00pc
1ly 0.31pc
2ly 0.61pc
3ly 0.92pc
4ly 1.23pc
5ly 1.53pc
6ly 1.84pc
7ly 2.15pc
8ly 2.45pc
9ly 2.76pc
10ly 3.07pc
11ly 3.37pc
12ly 3.68pc
13ly 3.99pc
14ly 4.29pc
15ly 4.60pc
16ly 4.91pc
17ly 5.21pc
18ly 5.52pc
19ly 5.83pc
Lightyears Parsecs
20ly 6.13pc
21ly 6.44pc
22ly 6.75pc
23ly 7.05pc
24ly 7.36pc
25ly 7.67pc
26ly 7.97pc
27ly 8.28pc
28ly 8.58pc
29ly 8.89pc
30ly 9.20pc
31ly 9.50pc
32ly 9.81pc
33ly 10.12pc
34ly 10.42pc
35ly 10.73pc
36ly 11.04pc
37ly 11.34pc
38ly 11.65pc
39ly 11.96pc
Lightyears Parsecs
40ly 12.26pc
41ly 12.57pc
42ly 12.88pc
43ly 13.18pc
44ly 13.49pc
45ly 13.80pc
46ly 14.10pc
47ly 14.41pc
48ly 14.72pc
49ly 15.02pc
50ly 15.33pc
51ly 15.64pc
52ly 15.94pc
53ly 16.25pc
54ly 16.56pc
55ly 16.86pc
56ly 17.17pc
57ly 17.48pc
58ly 17.78pc
59ly 18.09pc
Metric Conversion Table iPhone & Android app Length Temperature Weight Area Volume Speed Time Angle Pressure Energy and Power Health and Wellbeing