| San Pietro in Casale to Romeoville (Illinois) | 4,676.95 mi (7,526.83 km) |
| San Pietro in Casale to Romulus (Michigan) | 4,463.29 mi (7,182.97 km) |
| San Pietro in Casale to Ronkonkoma (New York) | 4,095.19 mi (6,590.58 km) |
| San Pietro in Casale to Roosevelt (New York) | 4,119.83 mi (6,630.22 km) |
| San Pietro in Casale to Rosamond (California) | 6,098.71 mi (9,814.93 km) |
| San Pietro in Casale to Rosaryville (Maryland) | 4,336.88 mi (6,979.54 km) |
| San Pietro in Casale to Roscoe (Illinois) | 4,676.39 mi (7,525.93 km) |
| San Pietro in Casale to Rose Hill (Virginia) | 4,348.18 mi (6,997.71 km) |
| San Pietro in Casale to Roseburg (Oregon) | 5,753.95 mi (9,260.08 km) |
| San Pietro in Casale to Rosedale (California) | 6,098.83 mi (9,815.12 km) |
| San Pietro in Casale to Rosedale (Maryland) | 4,300.06 mi (6,920.28 km) |
| San Pietro in Casale to Roselle (Illinois) | 4,660.70 mi (7,500.67 km) |
| San Pietro in Casale to Roselle (New Jersey) | 4,149.93 mi (6,678.67 km) |
| San Pietro in Casale to Roselle Park (New Jersey) | 4,149.72 mi (6,678.32 km) |
| San Pietro in Casale to Rosemead (California) | 6,140.60 mi (9,882.34 km) |
