| Frondenberg to Chitila | 966.24 mi (1,555.01 km) |
| Frondenberg to Cisnadie | 845.32 mi (1,360.41 km) |
| Frondenberg to Cluj-Napoca | 783.59 mi (1,261.06 km) |
| Frondenberg to Codlea | 898.04 mi (1,445.26 km) |
| Frondenberg to Comanesti | 913.33 mi (1,469.86 km) |
| Frondenberg to Comarnic | 922.76 mi (1,485.04 km) |
| Frondenberg to Constanta | 1,086.47 mi (1,748.51 km) |
| Frondenberg to Corabia | 940.16 mi (1,513.04 km) |
| Frondenberg to Costesti | 916.07 mi (1,474.27 km) |
| Frondenberg to Covasna | 922.69 mi (1,484.93 km) |
| Frondenberg to Craiova | 889.21 mi (1,431.04 km) |
| Frondenberg to Cristuru Secuiesc | 859.70 mi (1,383.56 km) |
| Frondenberg to Cugir | 808.86 mi (1,301.73 km) |
| Frondenberg to Cumpana | 1,085.48 mi (1,746.90 km) |
| Frondenberg to Curtea de Arges | 888.97 mi (1,430.65 km) |
