| Gunbarrel to Opole | 5,287.90 mi (8,510.06 km) |
| Gunbarrel to Orzesze | 5,338.44 mi (8,591.38 km) |
| Gunbarrel to Osowa | 5,107.87 mi (8,220.32 km) |
| Gunbarrel to Ostroda | 5,185.57 mi (8,345.37 km) |
| Gunbarrel to Ostroleka | 5,261.38 mi (8,467.38 km) |
| Gunbarrel to Ostrow Mazowiecka | 5,284.44 mi (8,504.48 km) |
| Gunbarrel to Ostrow Wielkopolski | 5,233.59 mi (8,422.65 km) |
| Gunbarrel to Ostrowiec Swietokrzyski | 5,371.35 mi (8,644.35 km) |
| Gunbarrel to Ostrzeszow | 5,248.97 mi (8,447.41 km) |
| Gunbarrel to Oswiecim | 5,357.88 mi (8,622.67 km) |
| Gunbarrel to Otwock | 5,304.29 mi (8,536.42 km) |
| Gunbarrel to Ozarow Mazowiecki | 5,286.39 mi (8,507.63 km) |
| Gunbarrel to Ozimek | 5,295.63 mi (8,522.50 km) |
| Gunbarrel to Ozorkow | 5,258.18 mi (8,462.22 km) |
| Gunbarrel to Pabianice | 5,277.59 mi (8,493.46 km) |
