| Royston to Cadiz | 1,114.80 mi (1,794.09 km) |
| Royston to Calafell | 753.17 mi (1,212.11 km) |
| Royston to Calahorra | 679.57 mi (1,093.66 km) |
| Royston to Calasparra | 958.06 mi (1,541.85 km) |
| Royston to Calatayud | 742.99 mi (1,195.73 km) |
| Royston to Caldas de Montbuy | 726.86 mi (1,169.77 km) |
| Royston to Caldas de Reyes | 766.08 mi (1,232.88 km) |
| Royston to Calella | 731.61 mi (1,177.41 km) |
| Royston to Callosa de Segura | 962.99 mi (1,549.79 km) |
| Royston to Calpe | 926.00 mi (1,490.25 km) |
| Royston to Calvia | 870.78 mi (1,401.39 km) |
| Royston to Camas | 1,053.14 mi (1,694.87 km) |
| Royston to Cambados | 776.26 mi (1,249.27 km) |
| Royston to Cambre | 717.50 mi (1,154.71 km) |
| Royston to Cambrils | 760.35 mi (1,223.67 km) |
