| Catonsville to Rosolini | 4,756.42 mi (7,654.71 km) |
| Catonsville to Rossano | 4,726.51 mi (7,606.59 km) |
| Catonsville to Rottofreno | 4,221.26 mi (6,793.46 km) |
| Catonsville to Rovato | 4,224.01 mi (6,797.88 km) |
| Catonsville to Roverbella | 4,266.64 mi (6,866.50 km) |
| Catonsville to Rovereto | 4,258.34 mi (6,853.14 km) |
| Catonsville to Rovigo | 4,316.65 mi (6,946.98 km) |
| Catonsville to Rozzano | 4,193.59 mi (6,748.93 km) |
| Catonsville to Rubano | 4,304.34 mi (6,927.17 km) |
| Catonsville to Rubiera | 4,287.84 mi (6,900.62 km) |
| Catonsville to Ruffano | 4,781.48 mi (7,695.05 km) |
| Catonsville to Russi | 4,350.81 mi (7,001.96 km) |
| Catonsville to Rutigliano | 4,685.96 mi (7,541.32 km) |
| Catonsville to Ruvo di Puglia | 4,660.84 mi (7,500.91 km) |
| Catonsville to Sabaudia | 4,502.15 mi (7,245.51 km) |
