| Den Helder to Octeville | 358.28 mi (576.59 km) |
| Den Helder to Oignies | 186.11 mi (299.52 km) |
| Den Helder to Oissel | 294.41 mi (473.81 km) |
| Den Helder to Olivet | 371.99 mi (598.66 km) |
| Den Helder to Ollioules | 678.57 mi (1,092.05 km) |
| Den Helder to Olonne-sur-Mer | 528.87 mi (851.14 km) |
| Den Helder to Oloron-Sainte-Marie | 716.42 mi (1,152.97 km) |
| Den Helder to Onet Village | 600.02 mi (965.65 km) |
| Den Helder to Onnaing | 182.67 mi (293.98 km) |
| Den Helder to Orange | 607.68 mi (977.97 km) |
| Den Helder to Orchies | 181.69 mi (292.40 km) |
| Den Helder to Orleans | 369.34 mi (594.39 km) |
| Den Helder to Orly | 307.15 mi (494.30 km) |
| Den Helder to Ormesson-sur-Marne | 302.33 mi (486.55 km) |
| Den Helder to Orsay | 313.22 mi (504.09 km) |
