| Owings Mills to Rivalta di Torino | 4,130.34 mi (6,647.14 km) |
| Owings Mills to Rivarolo Canavese | 4,129.59 mi (6,645.93 km) |
| Owings Mills to Rivoli | 4,129.19 mi (6,645.28 km) |
| Owings Mills to Rocca di Papa | 4,468.20 mi (7,190.88 km) |
| Owings Mills to Rocca Priora | 4,469.81 mi (7,193.46 km) |
| Owings Mills to Roccapiemonte | 4,592.05 mi (7,390.19 km) |
| Owings Mills to Roccastrada | 4,356.46 mi (7,011.04 km) |
| Owings Mills to Romano di Lombardia | 4,211.01 mi (6,776.97 km) |
| Owings Mills to Rome | 4,453.38 mi (7,167.02 km) |
| Owings Mills to Roncade | 4,318.79 mi (6,950.42 km) |
| Owings Mills to Ronchi dei Legionari | 4,358.71 mi (7,014.67 km) |
| Owings Mills to Ronciglione | 4,427.51 mi (7,125.38 km) |
| Owings Mills to Rosa | 4,289.99 mi (6,904.07 km) |
| Owings Mills to Rosarno | 4,735.63 mi (7,621.26 km) |
| Owings Mills to Rosignano Marittimo | 4,312.40 mi (6,940.14 km) |
