| Berkhampstead to Opole | 801.80 mi (1,290.37 km) |
| Berkhampstead to Orzesze | 845.24 mi (1,360.28 km) |
| Berkhampstead to Osowa | 808.12 mi (1,300.55 km) |
| Berkhampstead to Ostroda | 866.12 mi (1,393.88 km) |
| Berkhampstead to Ostroleka | 933.11 mi (1,501.70 km) |
| Berkhampstead to Ostrow Mazowiecka | 948.25 mi (1,526.05 km) |
| Berkhampstead to Ostrow Wielkopolski | 784.80 mi (1,263.01 km) |
| Berkhampstead to Ostrowiec Swietokrzyski | 945.83 mi (1,522.17 km) |
| Berkhampstead to Ostrzeszow | 792.11 mi (1,274.78 km) |
| Berkhampstead to Oswiecim | 867.43 mi (1,396.00 km) |
| Berkhampstead to Otwock | 926.56 mi (1,491.16 km) |
| Berkhampstead to Ozarow Mazowiecki | 906.10 mi (1,458.23 km) |
| Berkhampstead to Ozimek | 813.66 mi (1,309.46 km) |
| Berkhampstead to Ozorkow | 844.16 mi (1,358.55 km) |
| Berkhampstead to Pabianice | 851.30 mi (1,370.03 km) |
