| Keerbergen to Oignies | 80.55 mi (129.63 km) |
| Keerbergen to Oissel | 194.16 mi (312.46 km) |
| Keerbergen to Olivet | 249.15 mi (400.97 km) |
| Keerbergen to Ollioules | 546.31 mi (879.20 km) |
| Keerbergen to Olonne-sur-Mer | 424.31 mi (682.87 km) |
| Keerbergen to Oloron-Sainte-Marie | 592.75 mi (953.94 km) |
| Keerbergen to Onet Village | 468.25 mi (753.57 km) |
| Keerbergen to Onnaing | 62.06 mi (99.87 km) |
| Keerbergen to Orange | 474.38 mi (763.45 km) |
| Keerbergen to Orchies | 70.78 mi (113.92 km) |
| Keerbergen to Orleans | 246.62 mi (396.90 km) |
| Keerbergen to Orly | 185.18 mi (298.02 km) |
| Keerbergen to Ormesson-sur-Marne | 179.28 mi (288.52 km) |
| Keerbergen to Orsay | 192.89 mi (310.42 km) |
| Keerbergen to Orthez | 577.38 mi (929.20 km) |
