| Ziar nad Hronom to Oerlinghausen | 506.58 mi (815.25 km) |
| Ziar nad Hronom to Oestrich-Winkel | 498.62 mi (802.46 km) |
| Ziar nad Hronom to Offenburg | 499.68 mi (804.15 km) |
| Ziar nad Hronom to Oftersheim | 468.80 mi (754.47 km) |
| Ziar nad Hronom to Ohrdruf | 394.62 mi (635.08 km) |
| Ziar nad Hronom to Ohringen | 427.08 mi (687.32 km) |
| Ziar nad Hronom to Olbernhau | 286.09 mi (460.41 km) |
| Ziar nad Hronom to Olching | 347.00 mi (558.44 km) |
| Ziar nad Hronom to Oldenburg | 560.20 mi (901.56 km) |
| Ziar nad Hronom to Oldenburg in Holstein | 522.80 mi (841.37 km) |
| Ziar nad Hronom to Olfen | 551.55 mi (887.63 km) |
| Ziar nad Hronom to Olpe | 519.11 mi (835.43 km) |
| Ziar nad Hronom to Olsberg | 498.67 mi (802.53 km) |
| Ziar nad Hronom to Oranienburg | 378.81 mi (609.64 km) |
| Ziar nad Hronom to Ortenberg | 456.58 mi (734.80 km) |
