| Black Forest to Collegno | 5,264.69 mi (8,472.71 km) |
| Black Forest to Cologno al Serio | 5,316.69 mi (8,556.38 km) |
| Black Forest to Cologno Monzese | 5,304.44 mi (8,536.67 km) |
| Black Forest to Colorno | 5,371.74 mi (8,644.98 km) |
| Black Forest to Comacchio | 5,445.94 mi (8,764.40 km) |
| Black Forest to Comiso | 5,919.83 mi (9,527.04 km) |
| Black Forest to Como | 5,284.36 mi (8,504.36 km) |
| Black Forest to Concordia Sagittaria | 5,416.50 mi (8,717.01 km) |
| Black Forest to Concorezzo | 5,303.58 mi (8,535.29 km) |
| Black Forest to Conegliano | 5,391.85 mi (8,677.35 km) |
| Black Forest to Conselice | 5,442.72 mi (8,759.21 km) |
| Black Forest to Conselve | 5,408.96 mi (8,704.88 km) |
| Black Forest to Conversano | 5,804.96 mi (9,342.18 km) |
| Black Forest to Copertino | 5,873.60 mi (9,452.65 km) |
| Black Forest to Copparo | 5,424.04 mi (8,729.15 km) |
