| Pikesville to Robertsville (New Jersey) | 143.59 mi (231.08 km) |
| Pikesville to Robinson (Texas) | 1,269.87 mi (2,043.65 km) |
| Pikesville to Robstown (Texas) | 1,442.75 mi (2,321.88 km) |
| Pikesville to Rochester (Michigan) | 404.50 mi (650.98 km) |
| Pikesville to Rochester (Minnesota) | 872.58 mi (1,404.28 km) |
| Pikesville to Rochester (New Hampshire) | 401.20 mi (645.68 km) |
| Pikesville to Rochester (New York) | 265.36 mi (427.05 km) |
| Pikesville to Rochester Hills (Michigan) | 405.26 mi (652.21 km) |
| Pikesville to Rock Hill (South Carolina) | 388.57 mi (625.34 km) |
| Pikesville to Rock Island (Illinois) | 743.20 mi (1,196.06 km) |
| Pikesville to Rock Springs (Wyoming) | 1,705.36 mi (2,744.51 km) |
| Pikesville to Rockford (Illinois) | 675.35 mi (1,086.88 km) |
| Pikesville to Rockledge (Florida) | 798.80 mi (1,285.55 km) |
| Pikesville to Rocklin (California) | 2,364.21 mi (3,804.82 km) |
| Pikesville to Rockport (Texas) | 1,404.24 mi (2,259.90 km) |
