| Perry Barr to Oerlinghausen | 448.45 mi (721.71 km) |
| Perry Barr to Oestrich-Winkel | 461.90 mi (743.36 km) |
| Perry Barr to Offenburg | 514.67 mi (828.27 km) |
| Perry Barr to Oftersheim | 505.30 mi (813.20 km) |
| Perry Barr to Ohrdruf | 553.20 mi (890.30 km) |
| Perry Barr to Ohringen | 547.04 mi (880.37 km) |
| Perry Barr to Olbernhau | 665.17 mi (1,070.48 km) |
| Perry Barr to Olching | 653.54 mi (1,051.77 km) |
| Perry Barr to Oldenburg | 424.14 mi (682.58 km) |
| Perry Barr to Oldenburg in Holstein | 539.90 mi (868.89 km) |
| Perry Barr to Olfen | 397.66 mi (639.97 km) |
| Perry Barr to Olpe | 428.81 mi (690.10 km) |
| Perry Barr to Olsberg | 449.45 mi (723.32 km) |
| Perry Barr to Oranienburg | 633.86 mi (1,020.09 km) |
| Perry Barr to Ortenberg | 494.65 mi (796.06 km) |
