| Wallingford Center to Cocentaina | 3,713.97 mi (5,977.05 km) |
| Wallingford Center to Coin | 3,571.77 mi (5,748.21 km) |
| Wallingford Center to Colindres | 3,434.49 mi (5,527.28 km) |
| Wallingford Center to Collado-Villalba | 3,486.11 mi (5,610.36 km) |
| Wallingford Center to Colmenar Viejo | 3,496.88 mi (5,627.69 km) |
| Wallingford Center to Colmenarejo | 3,487.83 mi (5,613.11 km) |
| Wallingford Center to Conil de la Frontera | 3,518.89 mi (5,663.10 km) |
| Wallingford Center to Consuegra | 3,540.16 mi (5,697.33 km) |
| Wallingford Center to Corbera de Llobregat | 3,740.96 mi (6,020.50 km) |
| Wallingford Center to Cordoba | 3,531.88 mi (5,684.02 km) |
| Wallingford Center to Coria del Rio | 3,488.48 mi (5,614.16 km) |
| Wallingford Center to Crevillente | 3,712.31 mi (5,974.39 km) |
| Wallingford Center to Cuarte de Huerva | 3,603.65 mi (5,799.51 km) |
| Wallingford Center to Cubellas | 3,735.48 mi (6,011.68 km) |
| Wallingford Center to Cuellar | 3,449.53 mi (5,551.48 km) |
