| Royston to Cassina de' Pecchi | 620.50 mi (998.60 km) |
| Royston to Cassino | 976.91 mi (1,572.19 km) |
| Royston to Castagneto Carducci | 786.51 mi (1,265.76 km) |
| Royston to Castano Primo | 600.36 mi (966.18 km) |
| Royston to Castel Bolognese | 760.98 mi (1,224.68 km) |
| Royston to Castel Gandolfo | 927.02 mi (1,491.90 km) |
| Royston to Castel Goffredo | 667.16 mi (1,073.68 km) |
| Royston to Castel Maggiore | 733.90 mi (1,181.10 km) |
| Royston to Castel Mella | 646.24 mi (1,040.02 km) |
| Royston to Castel San Giorgio | 1,043.59 mi (1,679.50 km) |
| Royston to Castel San Giovanni | 647.55 mi (1,042.13 km) |
| Royston to Castel San Pietro Terme | 749.60 mi (1,206.37 km) |
| Royston to Castel Volturno | 1,004.45 mi (1,616.51 km) |
| Royston to Castelbuono | 1,190.03 mi (1,915.16 km) |
| Royston to Casteldaccia | 1,167.58 mi (1,879.04 km) |
