| East Barnet to Oerlinghausen | 377.66 mi (607.79 km) |
| East Barnet to Oestrich-Winkel | 373.72 mi (601.44 km) |
| East Barnet to Offenburg | 420.55 mi (676.81 km) |
| East Barnet to Oftersheim | 414.89 mi (667.70 km) |
| East Barnet to Ohrdruf | 474.26 mi (763.25 km) |
| East Barnet to Ohringen | 457.21 mi (735.81 km) |
| East Barnet to Olbernhau | 587.90 mi (946.14 km) |
| East Barnet to Olching | 562.54 mi (905.33 km) |
| East Barnet to Oldenburg | 367.86 mi (592.01 km) |
| East Barnet to Oldenburg in Holstein | 494.27 mi (795.45 km) |
| East Barnet to Olfen | 323.19 mi (520.13 km) |
| East Barnet to Olpe | 347.74 mi (559.63 km) |
| East Barnet to Olsberg | 372.25 mi (599.08 km) |
| East Barnet to Oranienburg | 571.79 mi (920.21 km) |
| East Barnet to Ortenberg | 410.28 mi (660.28 km) |
