| Idanha-a-Nova to Romeoville (Illinois) | 4,066.11 mi (6,543.77 km) |
| Idanha-a-Nova to Romulus (Michigan) | 3,830.15 mi (6,164.03 km) |
| Idanha-a-Nova to Ronkonkoma (New York) | 3,383.48 mi (5,445.19 km) |
| Idanha-a-Nova to Roosevelt (New York) | 3,408.98 mi (5,486.22 km) |
| Idanha-a-Nova to Rosamond (California) | 5,656.44 mi (9,103.15 km) |
| Idanha-a-Nova to Rosaryville (Maryland) | 3,619.70 mi (5,825.34 km) |
| Idanha-a-Nova to Roscoe (Illinois) | 4,081.82 mi (6,569.06 km) |
| Idanha-a-Nova to Rose Hill (Virginia) | 3,632.89 mi (5,846.57 km) |
| Idanha-a-Nova to Roseburg (Oregon) | 5,447.91 mi (8,767.56 km) |
| Idanha-a-Nova to Rosedale (California) | 5,671.73 mi (9,127.77 km) |
| Idanha-a-Nova to Rosedale (Maryland) | 3,588.09 mi (5,774.47 km) |
| Idanha-a-Nova to Roselle (Illinois) | 4,054.28 mi (6,524.74 km) |
| Idanha-a-Nova to Roselle (New Jersey) | 3,442.47 mi (5,540.12 km) |
| Idanha-a-Nova to Roselle Park (New Jersey) | 3,442.46 mi (5,540.11 km) |
| Idanha-a-Nova to Rosemead (California) | 5,688.97 mi (9,155.51 km) |
