| Fort Madison to Kinston (North Carolina) | 834.32 mi (1,342.71 km) |
| Fort Madison to Kirkland (Washington) | 1,593.45 mi (2,564.41 km) |
| Fort Madison to Kirksville (Missouri) | 70.70 mi (113.79 km) |
| Fort Madison to Kirkwood (Missouri) | 149.52 mi (240.64 km) |
| Fort Madison to Kiryas Joel (New York) | 896.25 mi (1,442.37 km) |
| Fort Madison to Kissimmee (Florida) | 1,020.40 mi (1,642.17 km) |
| Fort Madison to Klamath Falls (Oregon) | 1,571.83 mi (2,529.62 km) |
| Fort Madison to Knightdale (North Carolina) | 772.53 mi (1,243.27 km) |
| Fort Madison to Knik-Fairview (Alaska) | 2,784.87 mi (4,481.82 km) |
| Fort Madison to Knoxville (Tennessee) | 513.84 mi (826.94 km) |
| Fort Madison to Kokomo (Indiana) | 274.42 mi (441.64 km) |
| Fort Madison to Kuna (Idaho) | 1,294.89 mi (2,083.92 km) |
| Fort Madison to Kyle (Texas) | 820.91 mi (1,321.13 km) |
| Fort Madison to La Cañada Flintridge (California) | 1,531.70 mi (2,465.03 km) |
| Fort Madison to La Crescenta-Montrose (California) | 1,532.87 mi (2,466.92 km) |
