MileCheckWhat exit am I near?
In most states, an interstate exit is numbered by the mile marker where it sits. Exit 47 is near mile 47. So the nearest mile marker helps you estimate the exit numbers ahead and behind you. It doesn't name a specific exit. Use a map or your state's 511 map to confirm one.
How to work it out
Read the nearest mile marker. If you are driving the way the numbers go up (usually north or east), the next exit has a higher number. Driving the other way, it has a lower one. Exit 47 to exit 52 is about five miles.
Where this doesn't work
Some states numbered exits in order instead, as 1, 2, 3, no matter how far apart. Several northeastern states used this and have been switching to mile-based numbers. Where the numbers are sequential, the mile marker won't match the exit.
Short highways, loops and many US and state routes have no exit numbers at all. There the mile marker is the only number on the road.
What MileCheck shows
The MileCheck app shows your nearest mile marker, to one decimal, with the highway and direction. It does not list exits. On a road with mile-based exits, the marker gets you close.
See your mile marker as you drive
MileCheck shows your nearest mile marker, the highway and your direction. Premium adds live state DOT feeds for the road ahead and the map, with a 2-week free trial. It runs on CarPlay and Android Auto.
Questions, answered
Are exit numbers and mile markers the same thing?
No. A mile marker is a sign every mile along the road. An exit number names an interchange. In most states the exit number is taken from the mile marker at that spot.
Why does my exit have a letter, like 47A?
One interchange can have more than one ramp. They share the mile number and get letters.