| Portage to Cividale del Friuli | 4,574.43 mi (7,361.83 km) |
| Portage to Civita Castellana | 4,693.35 mi (7,553.22 km) |
| Portage to Civitanova Marche | 4,703.79 mi (7,570.03 km) |
| Portage to Civitavecchia | 4,676.85 mi (7,526.66 km) |
| Portage to Civitella in Val di Chiana | 4,618.49 mi (7,432.75 km) |
| Portage to Clusone | 4,447.99 mi (7,158.36 km) |
| Portage to Coccaglio | 4,461.86 mi (7,180.67 km) |
| Portage to Codigoro | 4,575.74 mi (7,363.94 km) |
| Portage to Codogno | 4,467.12 mi (7,189.14 km) |
| Portage to Codroipo | 4,562.68 mi (7,342.93 km) |
| Portage to Cogoleto | 4,455.34 mi (7,170.17 km) |
| Portage to Colle di Val d'Elsa | 4,595.74 mi (7,396.12 km) |
| Portage to Colle Salvetti | 4,561.33 mi (7,340.74 km) |
| Portage to Collecchio | 4,503.94 mi (7,248.39 km) |
| Portage to Colleferro | 4,741.81 mi (7,631.21 km) |
