| Efringen-Kirchen to Chitila | 906.61 mi (1,459.05 km) |
| Efringen-Kirchen to Cisnadie | 795.90 mi (1,280.87 km) |
| Efringen-Kirchen to Cluj-Napoca | 752.93 mi (1,211.73 km) |
| Efringen-Kirchen to Codlea | 856.29 mi (1,378.06 km) |
| Efringen-Kirchen to Comanesti | 890.94 mi (1,433.82 km) |
| Efringen-Kirchen to Comarnic | 873.92 mi (1,406.44 km) |
| Efringen-Kirchen to Constanta | 1,037.56 mi (1,669.79 km) |
| Efringen-Kirchen to Corabia | 857.94 mi (1,380.73 km) |
| Efringen-Kirchen to Costesti | 851.88 mi (1,370.97 km) |
| Efringen-Kirchen to Covasna | 888.02 mi (1,429.14 km) |
| Efringen-Kirchen to Craiova | 811.39 mi (1,305.81 km) |
| Efringen-Kirchen to Cristuru Secuiesc | 827.18 mi (1,331.22 km) |
| Efringen-Kirchen to Cugir | 756.93 mi (1,218.15 km) |
| Efringen-Kirchen to Cumpana | 1,035.30 mi (1,666.15 km) |
| Efringen-Kirchen to Curtea de Arges | 831.95 mi (1,338.90 km) |
