| Holborn to Cividale del Friuli | 719.60 mi (1,158.08 km) |
| Holborn to Civita Castellana | 866.93 mi (1,395.18 km) |
| Holborn to Civitanova Marche | 858.73 mi (1,381.99 km) |
| Holborn to Civitavecchia | 858.65 mi (1,381.87 km) |
| Holborn to Civitella in Val di Chiana | 784.79 mi (1,263.00 km) |
| Holborn to Clusone | 600.96 mi (967.15 km) |
| Holborn to Coccaglio | 617.49 mi (993.75 km) |
| Holborn to Codigoro | 727.06 mi (1,170.10 km) |
| Holborn to Codogno | 628.64 mi (1,011.70 km) |
| Holborn to Codroipo | 707.89 mi (1,139.24 km) |
| Holborn to Cogoleto | 637.09 mi (1,025.30 km) |
| Holborn to Colle di Val d'Elsa | 766.97 mi (1,234.31 km) |
| Holborn to Colle Salvetti | 735.82 mi (1,184.19 km) |
| Holborn to Collecchio | 666.44 mi (1,072.52 km) |
| Holborn to Colleferro | 916.74 mi (1,475.36 km) |
