The calculated distance (air line) between United States and United States is approximately 0 miles respectively 0 kilometers.
By car or train, the actual journey to United States is certainly longer, as only the direct route (as the crow flies) between United States and United States has been calculated here.
The center of the country is used to calculate the distance. For a more precise determination of the distance, please use one (or better yet two) cities for the distance calculation.
Air line (approximately)
0 kilometers
0 nautical miles