26 miles (+-)
At their closest point, Mexico and the US are 0 miles apart, as they share a border.
Dover and Calais are only about 21 miles apart. This is the point where the two countries are closest.
The closest point between the Asian and North American continents is the Bering Strait, which is about 55 miles (88 kilometers) wide. This narrow body of water separates Russia (Asia) from Alaska (North America).
California and Utah are about 120 miles apart at closest point. Colorado is much further.
About 1200 miles from the closest point, about 1700 miles from the farthest point.
2063 miles at the closest point.
21 miles at the closest point
About 300 miles at the closest point.
About 140 miles at its closest point.
About 40 miles from the closest point.
At its closest point, Uranus is 1,607,000,000 miles from Earth.