| Killingworth to Cividale del Friuli | 898.52 mi (1,446.03 km) |
| Killingworth to Civita Castellana | 1,082.21 mi (1,741.65 km) |
| Killingworth to Civitanova Marche | 1,060.26 mi (1,706.33 km) |
| Killingworth to Civitavecchia | 1,078.24 mi (1,735.26 km) |
| Killingworth to Civitella in Val di Chiana | 997.81 mi (1,605.82 km) |
| Killingworth to Clusone | 807.62 mi (1,299.74 km) |
| Killingworth to Coccaglio | 826.72 mi (1,330.48 km) |
| Killingworth to Codigoro | 927.43 mi (1,492.56 km) |
| Killingworth to Codogno | 842.97 mi (1,356.64 km) |
| Killingworth to Codroipo | 891.54 mi (1,434.80 km) |
| Killingworth to Cogoleto | 863.16 mi (1,389.11 km) |
| Killingworth to Colle di Val d'Elsa | 983.58 mi (1,582.91 km) |
| Killingworth to Colle Salvetti | 955.17 mi (1,537.20 km) |
| Killingworth to Collecchio | 880.26 mi (1,416.64 km) |
| Killingworth to Colleferro | 1,131.56 mi (1,821.06 km) |
