| Boppard to Calafell | 687.73 mi (1,106.79 km) |
| Boppard to Calahorra | 712.07 mi (1,145.96 km) |
| Boppard to Calasparra | 946.52 mi (1,523.27 km) |
| Boppard to Calatayud | 756.42 mi (1,217.35 km) |
| Boppard to Caldas de Montbuy | 648.32 mi (1,043.37 km) |
| Boppard to Caldas de Reyes | 932.47 mi (1,500.67 km) |
| Boppard to Calella | 640.21 mi (1,030.32 km) |
| Boppard to Callosa de Segura | 934.60 mi (1,504.09 km) |
| Boppard to Calpe | 881.78 mi (1,419.09 km) |
| Boppard to Calvia | 777.36 mi (1,251.03 km) |
| Boppard to Camas | 1,113.00 mi (1,791.21 km) |
| Boppard to Cambados | 943.34 mi (1,518.16 km) |
| Boppard to Cambre | 890.86 mi (1,433.70 km) |
| Boppard to Cambrils | 706.83 mi (1,137.54 km) |
| Boppard to Campo de Criptana | 912.05 mi (1,467.81 km) |
