| Gilching to Oestrich-Winkel | 198.43 mi (319.35 km) |
| Gilching to Offenburg | 156.76 mi (252.28 km) |
| Gilching to Oftersheim | 151.32 mi (243.53 km) |
| Gilching to Ohrdruf | 189.51 mi (304.98 km) |
| Gilching to Ohringen | 111.47 mi (179.39 km) |
| Gilching to Olbernhau | 198.86 mi (320.03 km) |
| Gilching to Olching | 6.24 mi (10.04 km) |
| Gilching to Oldenburg | 373.09 mi (600.44 km) |
| Gilching to Oldenburg in Holstein | 428.05 mi (688.88 km) |
| Gilching to Olfen | 304.00 mi (489.24 km) |
| Gilching to Olpe | 253.86 mi (408.55 km) |
| Gilching to Olsberg | 256.75 mi (413.19 km) |
| Gilching to Oranienburg | 331.96 mi (534.24 km) |
| Gilching to Ortenberg | 185.28 mi (298.19 km) |
| Gilching to Oschatz | 234.70 mi (377.71 km) |
