| Olton to Cadiz | 1,120.30 mi (1,802.95 km) |
| Olton to Calafell | 792.42 mi (1,275.28 km) |
| Olton to Calahorra | 700.49 mi (1,127.33 km) |
| Olton to Calasparra | 981.63 mi (1,579.78 km) |
| Olton to Calatayud | 766.13 mi (1,232.96 km) |
| Olton to Caldas de Montbuy | 769.33 mi (1,238.12 km) |
| Olton to Caldas de Reyes | 749.79 mi (1,206.67 km) |
| Olton to Calella | 776.33 mi (1,249.39 km) |
| Olton to Callosa de Segura | 990.09 mi (1,593.39 km) |
| Olton to Calpe | 957.10 mi (1,540.30 km) |
| Olton to Calvia | 912.71 mi (1,468.86 km) |
| Olton to Camas | 1,058.79 mi (1,703.95 km) |
| Olton to Cambados | 759.53 mi (1,222.34 km) |
| Olton to Cambre | 700.49 mi (1,127.33 km) |
| Olton to Cambrils | 797.07 mi (1,282.76 km) |
