| Helsinge to Oestrich-Winkel | 450.99 mi (725.80 km) |
| Helsinge to Offenburg | 552.06 mi (888.45 km) |
| Helsinge to Oftersheim | 483.67 mi (778.39 km) |
| Helsinge to Ohrdruf | 363.88 mi (585.62 km) |
| Helsinge to Ohringen | 484.66 mi (779.99 km) |
| Helsinge to Olbernhau | 372.97 mi (600.24 km) |
| Helsinge to Olching | 541.74 mi (871.85 km) |
| Helsinge to Oldenburg | 254.84 mi (410.13 km) |
| Helsinge to Oldenburg in Holstein | 129.80 mi (208.89 km) |
| Helsinge to Olfen | 356.12 mi (573.12 km) |
| Helsinge to Olpe | 389.36 mi (626.62 km) |
| Helsinge to Olsberg | 356.67 mi (574.01 km) |
| Helsinge to Oranienburg | 229.62 mi (369.53 km) |
| Helsinge to Ortenberg | 412.44 mi (663.76 km) |
| Helsinge to Oschatz | 328.36 mi (528.45 km) |
