| Royston to Opole | 778.45 mi (1,252.79 km) |
| Royston to Orzesze | 822.52 mi (1,323.71 km) |
| Royston to Osowa | 779.70 mi (1,254.81 km) |
| Royston to Ostroda | 838.45 mi (1,349.36 km) |
| Royston to Ostroleka | 906.07 mi (1,458.18 km) |
| Royston to Ostrow Mazowiecka | 921.47 mi (1,482.96 km) |
| Royston to Ostrow Wielkopolski | 759.89 mi (1,222.92 km) |
| Royston to Ostrowiec Swietokrzyski | 921.35 mi (1,482.77 km) |
| Royston to Ostrzeszow | 767.54 mi (1,235.24 km) |
| Royston to Oswiecim | 844.75 mi (1,359.49 km) |
| Royston to Otwock | 900.61 mi (1,449.39 km) |
| Royston to Ozarow Mazowiecki | 880.08 mi (1,416.35 km) |
| Royston to Ozimek | 790.23 mi (1,271.76 km) |
| Royston to Ozorkow | 818.61 mi (1,317.42 km) |
| Royston to Pabianice | 826.17 mi (1,329.59 km) |
