| Geldermalsen to Oerlinghausen | 144.27 mi (232.17 km) |
| Geldermalsen to Oestrich-Winkel | 175.82 mi (282.95 km) |
| Geldermalsen to Offenburg | 263.54 mi (424.13 km) |
| Geldermalsen to Oftersheim | 225.96 mi (363.65 km) |
| Geldermalsen to Ohrdruf | 246.11 mi (396.07 km) |
| Geldermalsen to Ohringen | 261.94 mi (421.55 km) |
| Geldermalsen to Olbernhau | 357.75 mi (575.75 km) |
| Geldermalsen to Olching | 369.15 mi (594.09 km) |
| Geldermalsen to Oldenburg | 150.88 mi (242.82 km) |
| Geldermalsen to Oldenburg in Holstein | 286.00 mi (460.27 km) |
| Geldermalsen to Olfen | 90.46 mi (145.58 km) |
| Geldermalsen to Olpe | 125.05 mi (201.26 km) |
| Geldermalsen to Olsberg | 142.13 mi (228.74 km) |
| Geldermalsen to Oranienburg | 341.08 mi (548.91 km) |
| Geldermalsen to Ortenberg | 194.64 mi (313.25 km) |
