| Trebnje to Cividale del Friuli | 76.73 mi (123.48 km) |
| Trebnje to Civita Castellana | 281.00 mi (452.23 km) |
| Trebnje to Civitanova Marche | 190.95 mi (307.31 km) |
| Trebnje to Civitavecchia | 307.74 mi (495.25 km) |
| Trebnje to Civitella in Val di Chiana | 236.30 mi (380.29 km) |
| Trebnje to Clusone | 243.21 mi (391.41 km) |
| Trebnje to Coccaglio | 243.72 mi (392.23 km) |
| Trebnje to Codigoro | 158.86 mi (255.66 km) |
| Trebnje to Codogno | 261.81 mi (421.35 km) |
| Trebnje to Codroipo | 97.58 mi (157.04 km) |
| Trebnje to Cogoleto | 327.25 mi (526.66 km) |
| Trebnje to Colle di Val d'Elsa | 257.55 mi (414.49 km) |
| Trebnje to Colle Salvetti | 273.39 mi (439.98 km) |
| Trebnje to Collecchio | 246.14 mi (396.12 km) |
| Trebnje to Colleferro | 305.19 mi (491.15 km) |
