| Riemst to Oignies | 116.67 mi (187.77 km) |
| Riemst to Oissel | 224.17 mi (360.77 km) |
| Riemst to Olivet | 262.94 mi (423.16 km) |
| Riemst to Ollioules | 530.04 mi (853.01 km) |
| Riemst to Olonne-sur-Mer | 447.25 mi (719.78 km) |
| Riemst to Oloron-Sainte-Marie | 601.49 mi (968.00 km) |
| Riemst to Onet Village | 466.64 mi (750.98 km) |
| Riemst to Onnaing | 92.57 mi (148.97 km) |
| Riemst to Orange | 462.37 mi (744.11 km) |
| Riemst to Orchies | 105.85 mi (170.35 km) |
| Riemst to Orleans | 260.60 mi (419.39 km) |
| Riemst to Orly | 202.10 mi (325.25 km) |
| Riemst to Ormesson-sur-Marne | 195.44 mi (314.52 km) |
| Riemst to Orsay | 210.91 mi (339.43 km) |
| Riemst to Orthez | 587.31 mi (945.18 km) |
