| San Pietro in Casale to Rockville (Maryland) | 4,337.86 mi (6,981.12 km) |
| San Pietro in Casale to Rockville Centre (New York) | 4,122.78 mi (6,634.98 km) |
| San Pietro in Casale to Rockwall (Texas) | 5,423.43 mi (8,728.17 km) |
| San Pietro in Casale to Rocky Mount (North Carolina) | 4,497.59 mi (7,238.17 km) |
| San Pietro in Casale to Rocky Point (New York) | 4,081.92 mi (6,569.22 km) |
| San Pietro in Casale to Rocky River (Ohio) | 4,434.21 mi (7,136.16 km) |
| San Pietro in Casale to Roessleville (New York) | 4,050.15 mi (6,518.09 km) |
| San Pietro in Casale to Rogers (Arkansas) | 5,164.77 mi (8,311.89 km) |
| San Pietro in Casale to Rogers (Minnesota) | 4,720.07 mi (7,596.21 km) |
| San Pietro in Casale to Rohnert Park (California) | 6,026.33 mi (9,698.44 km) |
| San Pietro in Casale to Rolla (Missouri) | 4,991.82 mi (8,033.55 km) |
| San Pietro in Casale to Rolling Meadows (Illinois) | 4,654.11 mi (7,490.07 km) |
| San Pietro in Casale to Roma (Texas) | 5,857.73 mi (9,427.11 km) |
| San Pietro in Casale to Rome (Georgia) | 4,892.67 mi (7,873.99 km) |
| San Pietro in Casale to Rome (New York) | 4,100.51 mi (6,599.14 km) |
