| Forest Grove to Romeoville (Illinois) | 1,758.62 mi (2,830.23 km) |
| Forest Grove to Romulus (Michigan) | 1,972.21 mi (3,173.97 km) |
| Forest Grove to Ronkonkoma (New York) | 2,499.07 mi (4,021.87 km) |
| Forest Grove to Roosevelt (New York) | 2,480.80 mi (3,992.46 km) |
| Forest Grove to Rosamond (California) | 780.02 mi (1,255.32 km) |
| Forest Grove to Rosaryville (Maryland) | 2,382.42 mi (3,834.14 km) |
| Forest Grove to Roscoe (Illinois) | 1,696.12 mi (2,729.64 km) |
| Forest Grove to Rose Hill (Virginia) | 2,368.22 mi (3,811.28 km) |
| Forest Grove to Roseburg (Oregon) | 159.45 mi (256.61 km) |
| Forest Grove to Rosedale (California) | 729.52 mi (1,174.05 km) |
| Forest Grove to Rosedale (Maryland) | 2,380.66 mi (3,831.31 km) |
| Forest Grove to Roselle (Illinois) | 1,750.88 mi (2,817.77 km) |
| Forest Grove to Roselle (New Jersey) | 2,449.35 mi (3,941.85 km) |
| Forest Grove to Roselle Park (New Jersey) | 2,448.67 mi (3,940.76 km) |
| Forest Grove to Rosemead (California) | 834.83 mi (1,343.52 km) |
