| Forest Grove to Collegno | 5,490.89 mi (8,836.74 km) |
| Forest Grove to Cologno al Serio | 5,516.20 mi (8,877.46 km) |
| Forest Grove to Cologno Monzese | 5,508.73 mi (8,865.44 km) |
| Forest Grove to Colorno | 5,571.83 mi (8,967.00 km) |
| Forest Grove to Comacchio | 5,630.43 mi (9,061.31 km) |
| Forest Grove to Comiso | 6,160.02 mi (9,913.60 km) |
| Forest Grove to Como | 5,487.29 mi (8,830.95 km) |
| Forest Grove to Concordia Sagittaria | 5,582.52 mi (8,984.19 km) |
| Forest Grove to Concorezzo | 5,506.60 mi (8,862.01 km) |
| Forest Grove to Conegliano | 5,562.11 mi (8,951.36 km) |
| Forest Grove to Conselice | 5,632.80 mi (9,065.11 km) |
| Forest Grove to Conselve | 5,590.79 mi (8,997.50 km) |
| Forest Grove to Conversano | 5,975.88 mi (9,617.26 km) |
| Forest Grove to Copertino | 6,040.96 mi (9,721.99 km) |
| Forest Grove to Copparo | 5,609.89 mi (9,028.24 km) |
