| Slovenj Gradec to Opole | 315.41 mi (507.61 km) |
| Slovenj Gradec to Orzesze | 302.75 mi (487.22 km) |
| Slovenj Gradec to Osowa | 566.86 mi (912.28 km) |
| Slovenj Gradec to Ostroda | 541.67 mi (871.73 km) |
| Slovenj Gradec to Ostroleka | 537.11 mi (864.40 km) |
| Slovenj Gradec to Ostrow Mazowiecka | 530.52 mi (853.79 km) |
| Slovenj Gradec to Ostrow Wielkopolski | 376.05 mi (605.20 km) |
| Slovenj Gradec to Ostrowiec Swietokrzyski | 419.75 mi (675.52 km) |
| Slovenj Gradec to Ostrzeszow | 362.87 mi (583.98 km) |
| Slovenj Gradec to Oswiecim | 309.30 mi (497.76 km) |
| Slovenj Gradec to Otwock | 476.89 mi (767.47 km) |
| Slovenj Gradec to Ozarow Mazowiecki | 470.59 mi (757.35 km) |
| Slovenj Gradec to Ozimek | 321.29 mi (517.07 km) |
| Slovenj Gradec to Ozorkow | 421.90 mi (678.98 km) |
| Slovenj Gradec to Pabianice | 404.92 mi (651.65 km) |
