| Hallstahammar to Opole | 621.90 mi (1,000.84 km) |
| Hallstahammar to Orzesze | 661.47 mi (1,064.53 km) |
| Hallstahammar to Osowa | 368.11 mi (592.41 km) |
| Hallstahammar to Ostroda | 432.32 mi (695.75 km) |
| Hallstahammar to Ostroleka | 495.88 mi (798.03 km) |
| Hallstahammar to Ostrow Mazowiecka | 518.18 mi (833.94 km) |
| Hallstahammar to Ostrow Wielkopolski | 553.83 mi (891.30 km) |
| Hallstahammar to Ostrowiec Swietokrzyski | 632.81 mi (1,018.42 km) |
| Hallstahammar to Ostrzeszow | 570.33 mi (917.86 km) |
| Hallstahammar to Oswiecim | 672.13 mi (1,081.69 km) |
| Hallstahammar to Otwock | 553.11 mi (890.15 km) |
| Hallstahammar to Ozarow Mazowiecki | 540.48 mi (869.82 km) |
| Hallstahammar to Ozimek | 622.72 mi (1,002.16 km) |
| Hallstahammar to Ozorkow | 541.39 mi (871.29 km) |
| Hallstahammar to Pabianice | 563.69 mi (907.17 km) |
