| Portage to Robertsville (New Jersey) | 600.08 mi (965.74 km) |
| Portage to Robinson (Texas) | 977.03 mi (1,572.38 km) |
| Portage to Robstown (Texas) | 1,204.76 mi (1,938.87 km) |
| Portage to Rochester (Michigan) | 130.38 mi (209.83 km) |
| Portage to Rochester (Minnesota) | 369.23 mi (594.22 km) |
| Portage to Rochester (New Hampshire) | 744.28 mi (1,197.80 km) |
| Portage to Rochester (New York) | 410.35 mi (660.39 km) |
| Portage to Rochester Hills (Michigan) | 128.22 mi (206.34 km) |
| Portage to Rock Hill (South Carolina) | 558.68 mi (899.10 km) |
| Portage to Rock Island (Illinois) | 261.85 mi (421.41 km) |
| Portage to Rock Springs (Wyoming) | 1,212.11 mi (1,950.71 km) |
| Portage to Rockford (Illinois) | 177.74 mi (286.04 km) |
| Portage to Rockledge (Florida) | 996.87 mi (1,604.31 km) |
| Portage to Rocklin (California) | 1,874.17 mi (3,016.18 km) |
| Portage to Rockport (Texas) | 1,172.16 mi (1,886.41 km) |
