| Royston to Noventa Vicentina | 703.04 mi (1,131.43 km) |
| Royston to Novi di Modena | 701.86 mi (1,129.53 km) |
| Royston to Novi Ligure | 644.57 mi (1,037.34 km) |
| Royston to Nuoro | 924.06 mi (1,487.14 km) |
| Royston to Occhiobello | 722.75 mi (1,163.16 km) |
| Royston to Oderzo | 712.72 mi (1,147.01 km) |
| Royston to Oggiono | 605.97 mi (975.22 km) |
| Royston to Olbia | 890.80 mi (1,433.60 km) |
| Royston to Oleggio | 593.64 mi (955.38 km) |
| Royston to Olgiate Comasco | 593.97 mi (955.91 km) |
| Royston to Olgiate Olona | 599.40 mi (964.64 km) |
| Royston to Omegna | 571.81 mi (920.24 km) |
| Royston to Opera | 622.99 mi (1,002.60 km) |
| Royston to Oppeano | 690.41 mi (1,111.11 km) |
| Royston to Orbassano | 596.10 mi (959.33 km) |
