| Balham to Opole | 785.29 mi (1,263.81 km) |
| Balham to Orzesze | 828.00 mi (1,332.53 km) |
| Balham to Osowa | 799.84 mi (1,287.22 km) |
| Balham to Ostroda | 856.10 mi (1,377.75 km) |
| Balham to Ostroleka | 921.83 mi (1,483.54 km) |
| Balham to Ostrow Mazowiecka | 936.48 mi (1,507.11 km) |
| Balham to Ostrow Wielkopolski | 770.27 mi (1,239.62 km) |
| Balham to Ostrowiec Swietokrzyski | 930.63 mi (1,497.70 km) |
| Balham to Ostrzeszow | 777.11 mi (1,250.64 km) |
| Balham to Oswiecim | 850.13 mi (1,368.15 km) |
| Balham to Otwock | 913.45 mi (1,470.06 km) |
| Balham to Ozarow Mazowiecki | 893.13 mi (1,437.35 km) |
| Balham to Ozimek | 797.24 mi (1,283.03 km) |
| Balham to Ozorkow | 830.50 mi (1,336.56 km) |
| Balham to Pabianice | 837.02 mi (1,347.06 km) |
