310 miles. This is the best route:
130 miles
about 105 miles up I-69.
The driving distance is about 152 road miles.
The distance by road from Waterloo, Iowa to Fort Wayne, Indiana is approximately 450 miles.
186 miles http://maps.google.ca/maps?hl=en&tab=wl
It is 1,185 miles according to Google Maps.
About 435 miles.
about 105 miles up I-69.
about 105 miles or so down I-69.
Fort Knox, Kentucky: approximately 277 miles.
4.3 miles = 22704 ft
190 ft = 0.036 miles