| Royston to Cocentaina | 919.31 mi (1,479.48 km) |
| Royston to Coin | 1,087.48 mi (1,750.12 km) |
| Royston to Colindres | 618.38 mi (995.18 km) |
| Royston to Collado-Villalba | 810.91 mi (1,305.04 km) |
| Royston to Colmenar Viejo | 806.58 mi (1,298.07 km) |
| Royston to Colmenarejo | 815.91 mi (1,313.08 km) |
| Royston to Conil de la Frontera | 1,129.99 mi (1,818.55 km) |
| Royston to Consuegra | 886.29 mi (1,426.34 km) |
| Royston to Corbera de Llobregat | 740.19 mi (1,191.23 km) |
| Royston to Cordoba | 1,005.26 mi (1,617.82 km) |
| Royston to Coria del Rio | 1,061.32 mi (1,708.03 km) |
| Royston to Crevillente | 954.14 mi (1,535.55 km) |
| Royston to Cuarte de Huerva | 724.20 mi (1,165.50 km) |
| Royston to Cubellas | 753.02 mi (1,211.86 km) |
| Royston to Cuellar | 762.82 mi (1,227.65 km) |
