| Fort Madison to Marshall (Minnesota) | 347.78 mi (559.70 km) |
| Fort Madison to Marshall (Missouri) | 143.01 mi (230.15 km) |
| Fort Madison to Marshall (Texas) | 582.71 mi (937.78 km) |
| Fort Madison to Marshalltown (Iowa) | 126.71 mi (203.92 km) |
| Fort Madison to Marshfield (Wisconsin) | 285.61 mi (459.65 km) |
| Fort Madison to Martha Lake (Washington) | 1,595.89 mi (2,568.34 km) |
| Fort Madison to Martin (Tennessee) | 325.26 mi (523.45 km) |
| Fort Madison to Martinez (California) | 1,646.21 mi (2,649.32 km) |
| Fort Madison to Martinez (Georgia) | 706.90 mi (1,137.64 km) |
| Fort Madison to Martinsburg (West Virginia) | 711.27 mi (1,144.67 km) |
| Fort Madison to Martinsville (Indiana) | 273.27 mi (439.78 km) |
| Fort Madison to Martinsville (New Jersey) | 878.57 mi (1,413.93 km) |
| Fort Madison to Martinsville (Virginia) | 676.24 mi (1,088.30 km) |
| Fort Madison to Maryland City (Maryland) | 777.64 mi (1,251.50 km) |
| Fort Madison to Maryland Heights (Missouri) | 139.41 mi (224.37 km) |
