| Gherla to Oerlinghausen | 762.31 mi (1,226.82 km) |
| Gherla to Oestrich-Winkel | 754.72 mi (1,214.60 km) |
| Gherla to Offenburg | 747.15 mi (1,202.42 km) |
| Gherla to Oftersheim | 722.47 mi (1,162.70 km) |
| Gherla to Ohrdruf | 651.93 mi (1,049.18 km) |
| Gherla to Ohringen | 680.06 mi (1,094.44 km) |
| Gherla to Olbernhau | 541.85 mi (872.02 km) |
| Gherla to Olching | 591.10 mi (951.28 km) |
| Gherla to Oldenburg | 811.48 mi (1,305.95 km) |
| Gherla to Oldenburg in Holstein | 758.17 mi (1,220.16 km) |
| Gherla to Olfen | 808.57 mi (1,301.27 km) |
| Gherla to Olpe | 776.67 mi (1,249.94 km) |
| Gherla to Olsberg | 755.91 mi (1,216.52 km) |
| Gherla to Oranienburg | 617.20 mi (993.29 km) |
| Gherla to Ortenberg | 713.80 mi (1,148.75 km) |
