| Forest Grove to Castrovillari | 6,024.85 mi (9,696.06 km) |
| Forest Grove to Catania | 6,139.12 mi (9,879.97 km) |
| Forest Grove to Catanzaro | 6,090.97 mi (9,802.47 km) |
| Forest Grove to Cattolica | 5,687.91 mi (9,153.81 km) |
| Forest Grove to Cava de' Tirreni | 5,934.07 mi (9,549.96 km) |
| Forest Grove to Cavallino | 6,041.33 mi (9,722.58 km) |
| Forest Grove to Cavarzere | 5,601.79 mi (9,015.21 km) |
| Forest Grove to Cave | 5,822.33 mi (9,370.13 km) |
| Forest Grove to Cavriago | 5,589.44 mi (8,995.33 km) |
| Forest Grove to Cavriglia | 5,683.80 mi (9,147.19 km) |
| Forest Grove to Cazzago San Martino | 5,524.50 mi (8,890.82 km) |
| Forest Grove to Ceccano | 5,847.46 mi (9,410.58 km) |
| Forest Grove to Cecina | 5,671.07 mi (9,126.71 km) |
| Forest Grove to Cefalu | 6,078.96 mi (9,783.14 km) |
| Forest Grove to Ceglie Messapico | 6,004.42 mi (9,663.18 km) |
