| Grande-Synthe to Civita Castellana | 768.32 mi (1,236.50 km) |
| Grande-Synthe to Civitanova Marche | 754.99 mi (1,215.03 km) |
| Grande-Synthe to Civitavecchia | 762.16 mi (1,226.58 km) |
| Grande-Synthe to Civitella in Val di Chiana | 684.98 mi (1,102.38 km) |
| Grande-Synthe to Clusone | 497.99 mi (801.43 km) |
| Grande-Synthe to Coccaglio | 515.55 mi (829.70 km) |
| Grande-Synthe to Codigoro | 622.59 mi (1,001.96 km) |
| Grande-Synthe to Codogno | 528.91 mi (851.19 km) |
| Grande-Synthe to Codroipo | 599.76 mi (965.21 km) |
| Grande-Synthe to Cogoleto | 544.06 mi (875.58 km) |
| Grande-Synthe to Colle di Val d'Elsa | 668.75 mi (1,076.25 km) |
| Grande-Synthe to Colle Salvetti | 638.92 mi (1,028.25 km) |
| Grande-Synthe to Collecchio | 566.61 mi (911.87 km) |
| Grande-Synthe to Colleferro | 818.03 mi (1,316.49 km) |
| Grande-Synthe to Collegno | 476.67 mi (767.12 km) |
