| Portage to Rockville (Maryland) | 491.57 mi (791.11 km) |
| Portage to Rockville Centre (New York) | 627.63 mi (1,010.08 km) |
| Portage to Rockwall (Texas) | 872.82 mi (1,404.67 km) |
| Portage to Rocky Mount (North Carolina) | 599.29 mi (964.47 km) |
| Portage to Rocky Point (New York) | 659.32 mi (1,061.08 km) |
| Portage to Rocky River (Ohio) | 198.91 mi (320.12 km) |
| Portage to Roessleville (New York) | 601.79 mi (968.49 km) |
| Portage to Rogers (Arkansas) | 611.84 mi (984.67 km) |
| Portage to Rogers (Minnesota) | 448.95 mi (722.52 km) |
| Portage to Rohnert Park (California) | 1,958.45 mi (3,151.82 km) |
| Portage to Rolla (Missouri) | 438.89 mi (706.32 km) |
| Portage to Rolling Meadows (Illinois) | 125.03 mi (201.22 km) |
| Portage to Roma (Texas) | 1,328.79 mi (2,138.49 km) |
| Portage to Rome (Georgia) | 548.61 mi (882.90 km) |
| Portage to Rome (New York) | 517.28 mi (832.49 km) |
