| Piacenza to Romeoville (Illinois) | 4,595.75 mi (7,396.14 km) |
| Piacenza to Romulus (Michigan) | 4,381.10 mi (7,050.70 km) |
| Piacenza to Ronkonkoma (New York) | 4,010.43 mi (6,454.16 km) |
| Piacenza to Roosevelt (New York) | 4,035.09 mi (6,493.86 km) |
| Piacenza to Rosamond (California) | 6,026.84 mi (9,699.27 km) |
| Piacenza to Rosaryville (Maryland) | 4,252.12 mi (6,843.12 km) |
| Piacenza to Roscoe (Illinois) | 4,595.80 mi (7,396.23 km) |
| Piacenza to Rose Hill (Virginia) | 4,263.46 mi (6,861.38 km) |
| Piacenza to Roseburg (Oregon) | 5,689.38 mi (9,156.17 km) |
| Piacenza to Rosedale (California) | 6,027.79 mi (9,700.80 km) |
| Piacenza to Rosedale (Maryland) | 4,215.41 mi (6,784.04 km) |
| Piacenza to Roselle (Illinois) | 4,579.64 mi (7,370.22 km) |
| Piacenza to Roselle (New Jersey) | 4,065.30 mi (6,542.47 km) |
| Piacenza to Roselle Park (New Jersey) | 4,065.09 mi (6,542.13 km) |
| Piacenza to Rosemead (California) | 6,068.28 mi (9,765.96 km) |
