| Kalundborg to Oignies | 491.82 mi (791.51 km) |
| Kalundborg to Oissel | 605.87 mi (975.05 km) |
| Kalundborg to Olivet | 666.58 mi (1,072.76 km) |
| Kalundborg to Ollioules | 897.35 mi (1,444.15 km) |
| Kalundborg to Olonne-sur-Mer | 840.17 mi (1,352.12 km) |
| Kalundborg to Oloron-Sainte-Marie | 1,007.08 mi (1,620.73 km) |
| Kalundborg to Onet Village | 866.47 mi (1,394.45 km) |
| Kalundborg to Onnaing | 479.60 mi (771.84 km) |
| Kalundborg to Orange | 844.17 mi (1,358.56 km) |
| Kalundborg to Orchies | 484.53 mi (779.77 km) |
| Kalundborg to Orleans | 664.13 mi (1,068.81 km) |
| Kalundborg to Orly | 603.34 mi (970.99 km) |
| Kalundborg to Ormesson-sur-Marne | 597.24 mi (961.16 km) |
| Kalundborg to Orsay | 611.24 mi (983.69 km) |
| Kalundborg to Orthez | 992.85 mi (1,597.83 km) |
