| Billerbeck to Oestrich-Winkel | 140.14 mi (225.54 km) |
| Billerbeck to Offenburg | 244.32 mi (393.20 km) |
| Billerbeck to Oftersheim | 188.87 mi (303.95 km) |
| Billerbeck to Ohrdruf | 168.15 mi (270.61 km) |
| Billerbeck to Ohringen | 214.98 mi (345.98 km) |
| Billerbeck to Olbernhau | 275.95 mi (444.09 km) |
| Billerbeck to Olching | 316.07 mi (508.66 km) |
| Billerbeck to Oldenburg | 89.25 mi (143.63 km) |
| Billerbeck to Oldenburg in Holstein | 218.65 mi (351.88 km) |
| Billerbeck to Olfen | 18.52 mi (29.81 km) |
| Billerbeck to Olpe | 70.42 mi (113.33 km) |
| Billerbeck to Olsberg | 66.96 mi (107.76 km) |
| Billerbeck to Oranienburg | 256.26 mi (412.41 km) |
| Billerbeck to Ortenberg | 135.63 mi (218.27 km) |
| Billerbeck to Oschatz | 253.53 mi (408.01 km) |
