| Berlaar to Oignies | 85.06 mi (136.89 km) |
| Berlaar to Oissel | 199.41 mi (320.91 km) |
| Berlaar to Olivet | 256.35 mi (412.56 km) |
| Berlaar to Ollioules | 554.02 mi (891.61 km) |
| Berlaar to Olonne-sur-Mer | 430.40 mi (692.66 km) |
| Berlaar to Oloron-Sainte-Marie | 600.15 mi (965.85 km) |
| Berlaar to Onet Village | 476.09 mi (766.19 km) |
| Berlaar to Onnaing | 68.19 mi (109.75 km) |
| Berlaar to Orange | 482.22 mi (776.05 km) |
| Berlaar to Orchies | 75.74 mi (121.89 km) |
| Berlaar to Orleans | 253.81 mi (408.47 km) |
| Berlaar to Orly | 192.22 mi (309.35 km) |
| Berlaar to Ormesson-sur-Marne | 186.40 mi (299.98 km) |
| Berlaar to Orsay | 199.80 mi (321.55 km) |
| Berlaar to Orthez | 584.70 mi (940.98 km) |
