| Gulbene to Oberkirch | 975.67 mi (1,570.19 km) |
| Gulbene to Obernburg am Main | 878.99 mi (1,414.59 km) |
| Gulbene to Obernkirchen | 777.89 mi (1,251.89 km) |
| Gulbene to Oberschleissheim | 881.49 mi (1,418.61 km) |
| Gulbene to Oberstdorf | 964.32 mi (1,551.92 km) |
| Gulbene to Obertraubling | 826.09 mi (1,329.47 km) |
| Gulbene to Obertshausen | 878.93 mi (1,414.51 km) |
| Gulbene to Oberursel | 881.47 mi (1,418.58 km) |
| Gulbene to Ochsenfurt | 857.54 mi (1,380.08 km) |
| Gulbene to Ochsenhausen | 939.64 mi (1,512.21 km) |
| Gulbene to Ochtrup | 849.22 mi (1,366.69 km) |
| Gulbene to Odenthal | 896.76 mi (1,443.19 km) |
| Gulbene to Oelde | 828.68 mi (1,333.64 km) |
| Gulbene to Oelsnitz | 753.56 mi (1,212.73 km) |
| Gulbene to Oer-Erkenschwick | 868.02 mi (1,396.95 km) |
