| Webster Groves to Rivalta di Torino | 4,736.65 mi (7,622.90 km) |
| Webster Groves to Rivarolo Canavese | 4,733.30 mi (7,617.51 km) |
| Webster Groves to Rivoli | 4,735.25 mi (7,620.65 km) |
| Webster Groves to Rocca di Papa | 5,080.12 mi (8,175.66 km) |
| Webster Groves to Rocca Priora | 5,081.47 mi (8,177.83 km) |
| Webster Groves to Roccapiemonte | 5,203.75 mi (8,374.62 km) |
| Webster Groves to Roccastrada | 4,965.38 mi (7,991.00 km) |
| Webster Groves to Romano di Lombardia | 4,807.56 mi (7,737.03 km) |
| Webster Groves to Rome | 5,065.25 mi (8,151.73 km) |
| Webster Groves to Roncade | 4,906.62 mi (7,896.44 km) |
| Webster Groves to Ronchi dei Legionari | 4,941.55 mi (7,952.66 km) |
| Webster Groves to Ronciglione | 5,037.75 mi (8,107.48 km) |
| Webster Groves to Rosa | 4,879.07 mi (7,852.10 km) |
| Webster Groves to Rosarno | 5,356.30 mi (8,620.13 km) |
| Webster Groves to Rosignano Marittimo | 4,920.94 mi (7,919.49 km) |
