| Troy to Rosemead (California) | 1,967.11 mi (3,165.76 km) |
| Troy to Rosemont (California) | 2,007.57 mi (3,230.87 km) |
| Troy to Rosemount (Minnesota) | 517.52 mi (832.87 km) |
| Troy to Rosenberg (Texas) | 1,142.91 mi (1,839.33 km) |
| Troy to Roseville (California) | 2,000.47 mi (3,219.45 km) |
| Troy to Roseville (Michigan) | 11.80 mi (19.00 km) |
| Troy to Roseville (Minnesota) | 526.28 mi (846.97 km) |
| Troy to Rossmoor (California) | 1,976.11 mi (3,180.24 km) |
| Troy to Rossville (Maryland) | 412.94 mi (664.56 km) |
| Troy to Roswell (Georgia) | 593.83 mi (955.67 km) |
| Troy to Roswell (New Mexico) | 1,321.70 mi (2,127.07 km) |
| Troy to Round Lake (Illinois) | 253.33 mi (407.69 km) |
| Troy to Round Lake Beach (Illinois) | 251.85 mi (405.31 km) |
| Troy to Round Rock (Texas) | 1,155.61 mi (1,859.78 km) |
| Troy to Rowland Heights (California) | 1,960.58 mi (3,155.25 km) |
