| Fort Madison to Baraboo (Wisconsin) | 213.52 mi (343.63 km) |
| Fort Madison to Barberton (Ohio) | 510.14 mi (820.99 km) |
| Fort Madison to Bardstown (Kentucky) | 370.17 mi (595.72 km) |
| Fort Madison to Barrington (Illinois) | 197.71 mi (318.18 km) |
| Fort Madison to Barstow (California) | 1,453.27 mi (2,338.81 km) |
| Fort Madison to Bartlesville (Oklahoma) | 365.19 mi (587.71 km) |
| Fort Madison to Bartlett (Illinois) | 188.28 mi (303.00 km) |
| Fort Madison to Bartlett (Tennessee) | 381.43 mi (613.85 km) |
| Fort Madison to Bartow (Florida) | 1,033.02 mi (1,662.49 km) |
| Fort Madison to Batavia (Illinois) | 179.26 mi (288.49 km) |
| Fort Madison to Batavia (New York) | 697.09 mi (1,121.86 km) |
| Fort Madison to Batesville (Arkansas) | 335.56 mi (540.04 km) |
| Fort Madison to Baton Rouge (Louisiana) | 703.39 mi (1,131.99 km) |
| Fort Madison to Battle Creek (Michigan) | 337.40 mi (542.99 km) |
| Fort Madison to Battle Ground (Washington) | 1,600.00 mi (2,574.95 km) |
