| Grudziadz to Coin | 1,618.19 mi (2,604.22 km) |
| Grudziadz to Colindres | 1,225.40 mi (1,972.09 km) |
| Grudziadz to Collado-Villalba | 1,380.98 mi (2,222.47 km) |
| Grudziadz to Colmenar Viejo | 1,371.12 mi (2,206.60 km) |
| Grudziadz to Colmenarejo | 1,384.99 mi (2,228.92 km) |
| Grudziadz to Conil de la Frontera | 1,684.82 mi (2,711.45 km) |
| Grudziadz to Consuegra | 1,427.99 mi (2,298.12 km) |
| Grudziadz to Corbera de Llobregat | 1,140.40 mi (1,835.30 km) |
| Grudziadz to Cordoba | 1,552.46 mi (2,498.44 km) |
| Grudziadz to Coria del Rio | 1,628.29 mi (2,620.47 km) |
| Grudziadz to Crevillente | 1,402.90 mi (2,257.75 km) |
| Grudziadz to Cuarte de Huerva | 1,224.80 mi (1,971.13 km) |
| Grudziadz to Cubellas | 1,159.88 mi (1,866.65 km) |
| Grudziadz to Cuellar | 1,353.21 mi (2,177.78 km) |
| Grudziadz to Cuenca | 1,346.42 mi (2,166.85 km) |
