| Trier to Cologno al Serio | 321.49 mi (517.39 km) |
| Trier to Cologno Monzese | 316.82 mi (509.88 km) |
| Trier to Colorno | 376.39 mi (605.73 km) |
| Trier to Comacchio | 435.27 mi (700.49 km) |
| Trier to Comiso | 969.68 mi (1,560.54 km) |
| Trier to Como | 295.31 mi (475.25 km) |
| Trier to Concordia Sagittaria | 398.69 mi (641.63 km) |
| Trier to Concorezzo | 313.97 mi (505.28 km) |
| Trier to Conegliano | 374.42 mi (602.57 km) |
| Trier to Conselice | 436.37 mi (702.27 km) |
| Trier to Conselve | 396.26 mi (637.71 km) |
| Trier to Conversano | 790.59 mi (1,272.33 km) |
| Trier to Copertino | 858.56 mi (1,381.72 km) |
| Trier to Copparo | 414.17 mi (666.55 km) |
| Trier to Corato | 758.51 mi (1,220.71 km) |
