| Boulder City to Rivalta di Torino | 5,794.21 mi (9,324.88 km) |
| Boulder City to Rivarolo Canavese | 5,785.95 mi (9,311.58 km) |
| Boulder City to Rivoli | 5,792.40 mi (9,321.96 km) |
| Boulder City to Rocca di Papa | 6,136.23 mi (9,875.30 km) |
| Boulder City to Rocca Priora | 6,137.00 mi (9,876.55 km) |
| Boulder City to Roccapiemonte | 6,254.97 mi (10,066.40 km) |
| Boulder City to Roccastrada | 6,019.61 mi (9,687.63 km) |
| Boulder City to Romano di Lombardia | 5,843.39 mi (9,404.03 km) |
| Boulder City to Rome | 6,121.79 mi (9,852.08 km) |
| Boulder City to Roncade | 5,921.40 mi (9,529.58 km) |
| Boulder City to Ronchi dei Legionari | 5,945.11 mi (9,567.73 km) |
| Boulder City to Ronciglione | 6,092.01 mi (9,804.14 km) |
| Boulder City to Rosa | 5,897.44 mi (9,491.02 km) |
| Boulder City to Rosarno | 6,420.89 mi (10,333.43 km) |
| Boulder City to Rosignano Marittimo | 5,976.04 mi (9,617.51 km) |
