| Grefrath to Coin | 1,150.82 mi (1,852.06 km) |
| Grefrath to Colindres | 713.43 mi (1,148.16 km) |
| Grefrath to Collado-Villalba | 889.02 mi (1,430.74 km) |
| Grefrath to Colmenar Viejo | 881.13 mi (1,418.04 km) |
| Grefrath to Colmenarejo | 893.58 mi (1,438.07 km) |
| Grefrath to Conil de la Frontera | 1,207.85 mi (1,943.84 km) |
| Grefrath to Consuegra | 949.90 mi (1,528.71 km) |
| Grefrath to Corbera de Llobregat | 716.53 mi (1,153.14 km) |
| Grefrath to Cordoba | 1,075.71 mi (1,731.20 km) |
| Grefrath to Coria del Rio | 1,144.59 mi (1,842.03 km) |
| Grefrath to Crevillente | 968.71 mi (1,559.00 km) |
| Grefrath to Cuarte de Huerva | 756.36 mi (1,217.25 km) |
| Grefrath to Cubellas | 733.92 mi (1,181.13 km) |
| Grefrath to Cuellar | 852.10 mi (1,371.33 km) |
| Grefrath to Cuenca | 878.50 mi (1,413.81 km) |
