| Barnet to Oerlinghausen | 379.21 mi (610.29 km) |
| Barnet to Oestrich-Winkel | 375.26 mi (603.93 km) |
| Barnet to Offenburg | 421.98 mi (679.11 km) |
| Barnet to Oftersheim | 416.41 mi (670.15 km) |
| Barnet to Ohrdruf | 475.84 mi (765.78 km) |
| Barnet to Ohringen | 458.74 mi (738.26 km) |
| Barnet to Olbernhau | 589.48 mi (948.68 km) |
| Barnet to Olching | 564.05 mi (907.75 km) |
| Barnet to Oldenburg | 369.31 mi (594.34 km) |
| Barnet to Oldenburg in Holstein | 495.64 mi (797.65 km) |
| Barnet to Olfen | 324.76 mi (522.64 km) |
| Barnet to Olpe | 349.31 mi (562.17 km) |
| Barnet to Olsberg | 373.83 mi (601.61 km) |
| Barnet to Oranienburg | 573.30 mi (922.64 km) |
| Barnet to Ortenberg | 411.85 mi (662.81 km) |
