| Royston to Casamassima | 1,107.03 mi (1,781.59 km) |
| Royston to Casandrino | 1,021.24 mi (1,643.53 km) |
| Royston to Casapulla | 1,014.88 mi (1,633.29 km) |
| Royston to Casarano | 1,198.69 mi (1,929.10 km) |
| Royston to Casatenovo | 609.21 mi (980.43 km) |
| Royston to Casciana Terme | 766.76 mi (1,233.99 km) |
| Royston to Cascina | 756.07 mi (1,216.78 km) |
| Royston to Caselle Torinese | 589.17 mi (948.18 km) |
| Royston to Caserta | 1,016.44 mi (1,635.81 km) |
| Royston to Casier | 711.93 mi (1,145.75 km) |
| Royston to Casorate Primo | 620.52 mi (998.63 km) |
| Royston to Casoria | 1,024.64 mi (1,649.00 km) |
| Royston to Cassano al Ionio | 1,150.06 mi (1,850.85 km) |
| Royston to Cassano d'Adda | 624.32 mi (1,004.74 km) |
| Royston to Cassano delle Murge | 1,105.48 mi (1,779.09 km) |
