| Gravelines to Civita Castellana | 772.09 mi (1,242.56 km) |
| Gravelines to Civitanova Marche | 759.59 mi (1,222.44 km) |
| Gravelines to Civitavecchia | 765.62 mi (1,232.14 km) |
| Gravelines to Civitella in Val di Chiana | 688.91 mi (1,108.70 km) |
| Gravelines to Clusone | 502.38 mi (808.51 km) |
| Gravelines to Coccaglio | 519.77 mi (836.49 km) |
| Gravelines to Codigoro | 627.30 mi (1,009.55 km) |
| Gravelines to Codogno | 532.77 mi (857.41 km) |
| Gravelines to Codroipo | 605.30 mi (974.14 km) |
| Gravelines to Cogoleto | 546.96 mi (880.24 km) |
| Gravelines to Colle di Val d'Elsa | 672.43 mi (1,082.17 km) |
| Gravelines to Colle Salvetti | 642.40 mi (1,033.84 km) |
| Gravelines to Collecchio | 570.50 mi (918.13 km) |
| Gravelines to Colleferro | 821.82 mi (1,322.60 km) |
| Gravelines to Collegno | 479.25 mi (771.28 km) |
