Here's the breakdown:
* Voyager 1 is currently about 160 AU from Earth. This means it's travelled about 160 times the distance between the Earth and the Sun.
* 1 AU is approximately 93 million miles.
To calculate the distance in miles, you would do:
160 AU * 93 million miles/AU = 14.88 billion miles
So Voyager 1 is currently about 14.88 billion miles from Earth.