| Leigh-on-Sea to Cividale del Friuli | 690.91 mi (1,111.91 km) |
| Leigh-on-Sea to Civita Castellana | 844.06 mi (1,358.38 km) |
| Leigh-on-Sea to Civitanova Marche | 833.31 mi (1,341.08 km) |
| Leigh-on-Sea to Civitavecchia | 836.74 mi (1,346.60 km) |
| Leigh-on-Sea to Civitella in Val di Chiana | 761.32 mi (1,225.23 km) |
| Leigh-on-Sea to Clusone | 575.83 mi (926.71 km) |
| Leigh-on-Sea to Coccaglio | 592.89 mi (954.17 km) |
| Leigh-on-Sea to Codigoro | 701.20 mi (1,128.47 km) |
| Leigh-on-Sea to Codogno | 605.10 mi (973.82 km) |
| Leigh-on-Sea to Codroipo | 679.71 mi (1,093.88 km) |
| Leigh-on-Sea to Cogoleto | 616.47 mi (992.11 km) |
| Leigh-on-Sea to Colle di Val d'Elsa | 744.22 mi (1,197.71 km) |
| Leigh-on-Sea to Colle Salvetti | 713.65 mi (1,148.50 km) |
| Leigh-on-Sea to Collecchio | 642.88 mi (1,034.62 km) |
| Leigh-on-Sea to Colleferro | 893.85 mi (1,438.51 km) |
