| Cologne to Chitila | 985.81 mi (1,586.52 km) |
| Cologne to Cisnadie | 865.92 mi (1,393.56 km) |
| Cologne to Cluj-Napoca | 806.94 mi (1,298.65 km) |
| Cologne to Codlea | 920.33 mi (1,481.13 km) |
| Cologne to Comanesti | 938.99 mi (1,511.15 km) |
| Cologne to Comarnic | 943.98 mi (1,519.19 km) |
| Cologne to Constanta | 1,108.53 mi (1,784.01 km) |
| Cologne to Corabia | 955.48 mi (1,537.69 km) |
| Cologne to Costesti | 934.53 mi (1,503.98 km) |
| Cologne to Covasna | 946.35 mi (1,523.00 km) |
| Cologne to Craiova | 905.01 mi (1,456.48 km) |
| Cologne to Cristuru Secuiesc | 883.32 mi (1,421.57 km) |
| Cologne to Cugir | 828.74 mi (1,333.72 km) |
| Cologne to Cumpana | 1,107.31 mi (1,782.04 km) |
| Cologne to Curtea de Arges | 908.53 mi (1,462.14 km) |
