| Gummersbach to Chitila | 963.02 mi (1,549.84 km) |
| Gummersbach to Cisnadie | 842.76 mi (1,356.29 km) |
| Gummersbach to Cluj-Napoca | 782.92 mi (1,259.98 km) |
| Gummersbach to Codlea | 896.66 mi (1,443.04 km) |
| Gummersbach to Comanesti | 914.34 mi (1,471.48 km) |
| Gummersbach to Comarnic | 920.65 mi (1,481.64 km) |
| Gummersbach to Constanta | 1,084.98 mi (1,746.10 km) |
| Gummersbach to Corabia | 934.14 mi (1,503.35 km) |
| Gummersbach to Costesti | 912.10 mi (1,467.88 km) |
| Gummersbach to Covasna | 922.28 mi (1,484.26 km) |
| Gummersbach to Craiova | 883.48 mi (1,421.83 km) |
| Gummersbach to Cristuru Secuiesc | 859.24 mi (1,382.81 km) |
| Gummersbach to Cugir | 805.80 mi (1,296.81 km) |
| Gummersbach to Cumpana | 1,083.82 mi (1,744.25 km) |
| Gummersbach to Curtea de Arges | 885.72 mi (1,425.43 km) |
