| Piqua to Cocentaina | 4,290.84 mi (6,905.43 km) |
| Piqua to Coin | 4,160.03 mi (6,694.93 km) |
| Piqua to Colindres | 3,998.43 mi (6,434.85 km) |
| Piqua to Collado-Villalba | 4,061.53 mi (6,536.39 km) |
| Piqua to Colmenar Viejo | 4,071.88 mi (6,553.06 km) |
| Piqua to Colmenarejo | 4,063.50 mi (6,539.57 km) |
| Piqua to Conil de la Frontera | 4,109.55 mi (6,613.67 km) |
| Piqua to Consuegra | 4,118.99 mi (6,628.87 km) |
| Piqua to Corbera de Llobregat | 4,304.75 mi (6,927.83 km) |
| Piqua to Cordoba | 4,116.94 mi (6,625.57 km) |
| Piqua to Coria del Rio | 4,076.60 mi (6,560.65 km) |
| Piqua to Crevillente | 4,291.25 mi (6,906.10 km) |
| Piqua to Cuarte de Huerva | 4,171.19 mi (6,712.88 km) |
| Piqua to Cubellas | 4,300.49 mi (6,920.96 km) |
| Piqua to Cuellar | 4,022.58 mi (6,473.72 km) |
