| Royston to Caltagirone | 1,242.94 mi (2,000.31 km) |
| Royston to Caltanissetta | 1,215.49 mi (1,956.14 km) |
| Royston to Calvisano | 660.35 mi (1,062.74 km) |
| Royston to Calvizzano | 1,021.03 mi (1,643.19 km) |
| Royston to Camaiore | 734.77 mi (1,182.50 km) |
| Royston to Cameri | 599.58 mi (964.93 km) |
| Royston to Camisano Vicentino | 697.88 mi (1,123.13 km) |
| Royston to Campagna | 1,062.64 mi (1,710.16 km) |
| Royston to Campagnano di Roma | 897.29 mi (1,444.05 km) |
| Royston to Campi Bisenzio | 766.40 mi (1,233.40 km) |
| Royston to Campi Salentina | 1,173.39 mi (1,888.38 km) |
| Royston to Campiglia Marittima | 792.65 mi (1,275.65 km) |
| Royston to Campobasso | 999.72 mi (1,608.89 km) |
| Royston to Campobello di Licata | 1,226.03 mi (1,973.11 km) |
| Royston to Campobello di Mazara | 1,172.27 mi (1,886.58 km) |
