| Opmeer to Coin | 1,203.39 mi (1,936.67 km) |
| Opmeer to Colindres | 749.63 mi (1,206.42 km) |
| Opmeer to Collado-Villalba | 934.03 mi (1,503.17 km) |
| Opmeer to Colmenar Viejo | 927.32 mi (1,492.38 km) |
| Opmeer to Colmenarejo | 938.79 mi (1,510.84 km) |
| Opmeer to Conil de la Frontera | 1,255.64 mi (2,020.76 km) |
| Opmeer to Consuegra | 1,000.71 mi (1,610.49 km) |
| Opmeer to Corbera de Llobregat | 792.24 mi (1,274.99 km) |
| Opmeer to Cordoba | 1,125.24 mi (1,810.90 km) |
| Opmeer to Coria del Rio | 1,190.00 mi (1,915.11 km) |
| Opmeer to Crevillente | 1,035.91 mi (1,667.14 km) |
| Opmeer to Cuarte de Huerva | 815.40 mi (1,312.25 km) |
| Opmeer to Cubellas | 808.56 mi (1,301.25 km) |
| Opmeer to Cuellar | 892.57 mi (1,436.46 km) |
| Opmeer to Cuenca | 935.07 mi (1,504.85 km) |
