| Hamminkeln to Oestrich-Winkel | 134.51 mi (216.48 km) |
| Hamminkeln to Offenburg | 233.31 mi (375.47 km) |
| Hamminkeln to Oftersheim | 185.13 mi (297.94 km) |
| Hamminkeln to Ohrdruf | 189.56 mi (305.07 km) |
| Hamminkeln to Ohringen | 216.70 mi (348.74 km) |
| Hamminkeln to Olbernhau | 300.93 mi (484.30 km) |
| Hamminkeln to Olching | 321.84 mi (517.94 km) |
| Hamminkeln to Oldenburg | 119.12 mi (191.71 km) |
| Hamminkeln to Oldenburg in Holstein | 251.55 mi (404.83 km) |
| Hamminkeln to Olfen | 33.93 mi (54.61 km) |
| Hamminkeln to Olpe | 72.89 mi (117.31 km) |
| Hamminkeln to Olsberg | 85.50 mi (137.59 km) |
| Hamminkeln to Oranienburg | 289.80 mi (466.38 km) |
| Hamminkeln to Ortenberg | 143.17 mi (230.41 km) |
| Hamminkeln to Oschatz | 281.67 mi (453.30 km) |
