| Catonsville to Racale | 4,775.57 mi (7,685.54 km) |
| Catonsville to Racconigi | 4,149.72 mi (6,678.32 km) |
| Catonsville to Raffadali | 4,668.93 mi (7,513.92 km) |
| Catonsville to Ragusa | 4,742.18 mi (7,631.80 km) |
| Catonsville to Ramacca | 4,723.20 mi (7,601.26 km) |
| Catonsville to Randazzo | 4,715.48 mi (7,588.83 km) |
| Catonsville to Rapallo | 4,230.66 mi (6,808.59 km) |
| Catonsville to Ravanusa | 4,694.14 mi (7,554.49 km) |
| Catonsville to Ravenna | 4,356.67 mi (7,011.38 km) |
| Catonsville to Recanati | 4,450.03 mi (7,161.64 km) |
| Catonsville to Recco | 4,226.49 mi (6,801.87 km) |
| Catonsville to Reggello | 4,352.95 mi (7,005.39 km) |
| Catonsville to Reggio di Calabria | 4,738.34 mi (7,625.62 km) |
| Catonsville to Reggio Emilia | 4,279.72 mi (6,887.54 km) |
| Catonsville to Reggiolo | 4,280.39 mi (6,888.62 km) |
