| Mierlo to Octeville | 342.51 mi (551.22 km) |
| Mierlo to Oignies | 132.54 mi (213.31 km) |
| Mierlo to Oissel | 246.54 mi (396.77 km) |
| Mierlo to Olivet | 297.84 mi (479.33 km) |
| Mierlo to Ollioules | 573.69 mi (923.27 km) |
| Mierlo to Olonne-sur-Mer | 476.19 mi (766.35 km) |
| Mierlo to Oloron-Sainte-Marie | 639.55 mi (1,029.25 km) |
| Mierlo to Onet Village | 508.45 mi (818.26 km) |
| Mierlo to Onnaing | 114.23 mi (183.83 km) |
| Mierlo to Orange | 505.96 mi (814.27 km) |
| Mierlo to Orchies | 123.05 mi (198.03 km) |
| Mierlo to Orleans | 295.39 mi (475.38 km) |
| Mierlo to Orly | 234.87 mi (377.98 km) |
| Mierlo to Ormesson-sur-Marne | 228.64 mi (367.96 km) |
| Mierlo to Orsay | 243.01 mi (391.09 km) |
