| Harlingen to Campos del Puerto | 956.34 mi (1,539.08 km) |
| Harlingen to Canals | 1,022.51 mi (1,645.56 km) |
| Harlingen to Candelaria | 2,041.73 mi (3,285.85 km) |
| Harlingen to Canet de Mar | 811.09 mi (1,305.32 km) |
| Harlingen to Cangas | 998.54 mi (1,606.99 km) |
| Harlingen to Cangas de Narcea | 881.66 mi (1,418.89 km) |
| Harlingen to Canovellas | 811.68 mi (1,306.27 km) |
| Harlingen to Canteras | 1,118.96 mi (1,800.79 km) |
| Harlingen to Cantillana | 1,203.14 mi (1,936.26 km) |
| Harlingen to Capdepera | 935.67 mi (1,505.81 km) |
| Harlingen to Carballo | 943.08 mi (1,517.74 km) |
| Harlingen to Carcagente | 1,009.93 mi (1,625.32 km) |
| Harlingen to Cardedeu | 809.47 mi (1,302.71 km) |
| Harlingen to Carlet | 1,003.90 mi (1,615.62 km) |
| Harlingen to Carmona | 1,207.74 mi (1,943.68 km) |
