| Amersham to Opole | 803.85 mi (1,293.67 km) |
| Amersham to Orzesze | 847.11 mi (1,363.28 km) |
| Amersham to Osowa | 811.88 mi (1,306.60 km) |
| Amersham to Ostroda | 869.57 mi (1,399.44 km) |
| Amersham to Ostroleka | 936.33 mi (1,506.87 km) |
| Amersham to Ostrow Mazowiecka | 951.36 mi (1,531.07 km) |
| Amersham to Ostrow Wielkopolski | 787.31 mi (1,267.06 km) |
| Amersham to Ostrowiec Swietokrzyski | 948.21 mi (1,525.99 km) |
| Amersham to Ostrzeszow | 794.52 mi (1,278.65 km) |
| Amersham to Oswiecim | 869.28 mi (1,398.98 km) |
| Amersham to Otwock | 929.40 mi (1,495.72 km) |
| Amersham to Ozarow Mazowiecki | 908.97 mi (1,462.84 km) |
| Amersham to Ozimek | 815.73 mi (1,312.79 km) |
| Amersham to Ozorkow | 846.87 mi (1,362.91 km) |
| Amersham to Pabianice | 853.88 mi (1,374.18 km) |
