# How many feet are in a light year?

##### 1 Answer

Mar 4, 2016

1 ly = 3.10396 E+16 feet.

#### Explanation:

1 light second = 299792.458 km.

1. km = 0.621371 mile.

1 mile = 5280 feet'

1 year = 365.256 day..

1 day = 86400 sec,

1 ly = (1 ls in feet) X (1 year in seconds)

So, 1 ly = (299792.458 X 0.621371 X 5280) X( 395.256 X 86400) feet