| Gummersbach to Civita Castellana | 645.53 mi (1,038.88 km) |
| Gummersbach to Civitanova Marche | 607.28 mi (977.32 km) |
| Gummersbach to Civitavecchia | 648.88 mi (1,044.27 km) |
| Gummersbach to Civitella in Val di Chiana | 560.90 mi (902.67 km) |
| Gummersbach to Clusone | 372.16 mi (598.93 km) |
| Gummersbach to Coccaglio | 393.80 mi (633.76 km) |
| Gummersbach to Codigoro | 477.13 mi (767.87 km) |
| Gummersbach to Codogno | 417.58 mi (672.03 km) |
| Gummersbach to Codroipo | 428.88 mi (690.22 km) |
| Gummersbach to Cogoleto | 461.77 mi (743.15 km) |
| Gummersbach to Colle di Val d'Elsa | 553.16 mi (890.22 km) |
| Gummersbach to Colle Salvetti | 531.34 mi (855.11 km) |
| Gummersbach to Collecchio | 451.08 mi (725.94 km) |
| Gummersbach to Colleferro | 692.61 mi (1,114.64 km) |
| Gummersbach to Collegno | 411.51 mi (662.25 km) |
