| Pikesville to Romeoville (Illinois) | 617.93 mi (994.46 km) |
| Pikesville to Romulus (Michigan) | 399.60 mi (643.09 km) |
| Pikesville to Ronkonkoma (New York) | 212.82 mi (342.49 km) |
| Pikesville to Roosevelt (New York) | 187.50 mi (301.75 km) |
| Pikesville to Rosamond (California) | 2,287.89 mi (3,682.01 km) |
| Pikesville to Rosaryville (Maryland) | 43.50 mi (70.01 km) |
| Pikesville to Roscoe (Illinois) | 675.26 mi (1,086.73 km) |
| Pikesville to Rose Hill (Virginia) | 46.97 mi (75.59 km) |
| Pikesville to Roseburg (Oregon) | 2,404.22 mi (3,869.22 km) |
| Pikesville to Rosedale (California) | 2,328.09 mi (3,746.70 km) |
| Pikesville to Rosedale (Maryland) | 11.21 mi (18.05 km) |
| Pikesville to Roselle (Illinois) | 622.20 mi (1,001.33 km) |
| Pikesville to Roselle (New Jersey) | 155.93 mi (250.94 km) |
| Pikesville to Roselle Park (New Jersey) | 156.12 mi (251.24 km) |
| Pikesville to Rosemead (California) | 2,300.44 mi (3,702.21 km) |
