| Boppard to Chitila | 943.79 mi (1,518.89 km) |
| Boppard to Cisnadie | 824.97 mi (1,327.66 km) |
| Boppard to Cluj-Napoca | 768.55 mi (1,236.86 km) |
| Boppard to Codlea | 880.71 mi (1,417.37 km) |
| Boppard to Comanesti | 902.43 mi (1,452.32 km) |
| Boppard to Comarnic | 903.39 mi (1,453.86 km) |
| Boppard to Constanta | 1,068.37 mi (1,719.38 km) |
| Boppard to Corabia | 910.32 mi (1,465.02 km) |
| Boppard to Costesti | 891.73 mi (1,435.10 km) |
| Boppard to Covasna | 907.89 mi (1,461.11 km) |
| Boppard to Craiova | 860.29 mi (1,384.50 km) |
| Boppard to Cristuru Secuiesc | 844.96 mi (1,359.84 km) |
| Boppard to Cugir | 787.28 mi (1,267.01 km) |
| Boppard to Cumpana | 1,066.96 mi (1,717.11 km) |
| Boppard to Curtea de Arges | 866.65 mi (1,394.74 km) |
