voyager 1 is 11.7billion miles away and voyager 2 is 9.5 billion miles away because it took a different route. pretty big numbers but to put it into perspective, voyager is traveling at 17 kilometers per second and it first took off 36 years ago. it has took that long to go 11.7billion miles away. it has just reached interstellar space meaning it has left the part of space which has no affect by our sun or any other star