Parsec

1 parsec =

SI units
30.857×10^12 km	30.857×10^15 m
Astronomical units
206.26×10^3 AU	3.26156 ly
US customary / Imperial units
19.174×10^12 mi	101.24×10^15 ft

The parsec (seembol: pc) is a unit o lenth uised in astronomy, equal tae aboot 3.26 licht-years, or aboot 30.9 trillion kilometres (19.2 trillion miles).