| Royston to Benavente | 997.06 mi (1,604.61 km) |
| Royston to Bombarral | 985.21 mi (1,585.55 km) |
| Royston to Bougado | 842.08 mi (1,355.20 km) |
| Royston to Braga | 825.68 mi (1,328.81 km) |
| Royston to Braganca | 774.90 mi (1,247.08 km) |
| Royston to Cabeceiras de Basto | 817.87 mi (1,316.23 km) |
| Royston to Cacem | 1,020.06 mi (1,641.62 km) |
| Royston to Cadaval | 986.25 mi (1,587.22 km) |
| Royston to Caldas da Rainha | 975.98 mi (1,570.69 km) |
| Royston to Calheta | 1,587.32 mi (2,554.55 km) |
| Royston to Camara de Lobos | 1,584.15 mi (2,549.44 km) |
| Royston to Canico | 1,584.06 mi (2,549.30 km) |
| Royston to Cantanhede | 905.03 mi (1,456.50 km) |
| Royston to Carregal do Sal | 887.17 mi (1,427.76 km) |
| Royston to Cartaxo | 985.00 mi (1,585.20 km) |
