| Gulbene to Oerlinghausen | 805.24 mi (1,295.91 km) |
| Gulbene to Oestrich-Winkel | 910.08 mi (1,464.63 km) |
| Gulbene to Offenburg | 983.79 mi (1,583.25 km) |
| Gulbene to Oftersheim | 919.25 mi (1,479.39 km) |
| Gulbene to Ohrdruf | 781.22 mi (1,257.26 km) |
| Gulbene to Ohringen | 897.45 mi (1,444.31 km) |
| Gulbene to Olbernhau | 704.82 mi (1,134.29 km) |
| Gulbene to Olching | 891.54 mi (1,434.80 km) |
| Gulbene to Oldenburg | 779.73 mi (1,254.86 km) |
| Gulbene to Oldenburg in Holstein | 646.51 mi (1,040.47 km) |
| Gulbene to Olfen | 860.45 mi (1,384.75 km) |
| Gulbene to Olpe | 872.28 mi (1,403.80 km) |
| Gulbene to Olsberg | 835.96 mi (1,345.35 km) |
| Gulbene to Oranienburg | 615.14 mi (989.97 km) |
| Gulbene to Ortenberg | 858.52 mi (1,381.65 km) |
