| Piacenza to Rockville (Maryland) | 4,253.25 mi (6,844.94 km) |
| Piacenza to Rockville Centre (New York) | 4,038.05 mi (6,498.62 km) |
| Piacenza to Rockwall (Texas) | 5,341.29 mi (8,595.97 km) |
| Piacenza to Rocky Mount (North Carolina) | 4,412.25 mi (7,100.84 km) |
| Piacenza to Rocky Point (New York) | 3,997.17 mi (6,432.82 km) |
| Piacenza to Rocky River (Ohio) | 4,351.35 mi (7,002.83 km) |
| Piacenza to Roessleville (New York) | 3,966.13 mi (6,382.87 km) |
| Piacenza to Rogers (Arkansas) | 5,083.16 mi (8,180.56 km) |
| Piacenza to Rogers (Minnesota) | 4,642.29 mi (7,471.05 km) |
| Piacenza to Rohnert Park (California) | 5,958.87 mi (9,589.88 km) |
| Piacenza to Rolla (Missouri) | 4,910.13 mi (7,902.09 km) |
| Piacenza to Rolling Meadows (Illinois) | 4,573.08 mi (7,359.66 km) |
| Piacenza to Roma (Texas) | 5,774.32 mi (9,292.87 km) |
| Piacenza to Rome (Georgia) | 4,808.17 mi (7,738.01 km) |
| Piacenza to Rome (New York) | 4,017.01 mi (6,464.75 km) |
