If we scaled the milky way to the size of earth, that would be about 15km away.
If we scaled the observable universe to the size of earth that would be about 4mm away.
“Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space.”
― Douglas Adams, The Hitchhiker's Guide to the Galaxy