| Fort Madison to Roy (Utah) | 1,079.11 mi (1,736.65 km) |
| Fort Madison to Royal Kunia (Hawaii) | 4,065.82 mi (6,543.31 km) |
| Fort Madison to Royal Oak (Michigan) | 443.16 mi (713.19 km) |
| Fort Madison to Royal Palm Beach (Florida) | 1,152.80 mi (1,855.25 km) |
| Fort Madison to Royse City (Texas) | 595.12 mi (957.75 km) |
| Fort Madison to Ruskin (Florida) | 1,026.65 mi (1,652.23 km) |
| Fort Madison to Russellville (Alabama) | 466.67 mi (751.03 km) |
| Fort Madison to Russellville (Arkansas) | 381.87 mi (614.56 km) |
| Fort Madison to Ruston (Louisiana) | 563.33 mi (906.60 km) |
| Fort Madison to Rutherford (New Jersey) | 901.71 mi (1,451.16 km) |
| Fort Madison to Rutland (Vermont) | 961.89 mi (1,548.01 km) |
| Fort Madison to Sabana Grande (Puerto Rico) | 2,125.80 mi (3,421.14 km) |
| Fort Madison to Sachse (Texas) | 602.14 mi (969.04 km) |
| Fort Madison to Saco (Maine) | 1,086.98 mi (1,749.33 km) |
| Fort Madison to Sacramento (California) | 1,601.93 mi (2,578.06 km) |
