| Grunheide to Octeville | 697.82 mi (1,123.04 km) |
| Grunheide to Oignies | 484.98 mi (780.50 km) |
| Grunheide to Oissel | 593.47 mi (955.10 km) |
| Grunheide to Olivet | 613.71 mi (987.67 km) |
| Grunheide to Ollioules | 739.77 mi (1,190.55 km) |
| Grunheide to Olonne-sur-Mer | 807.31 mi (1,299.24 km) |
| Grunheide to Oloron-Sainte-Marie | 921.58 mi (1,483.15 km) |
| Grunheide to Onet Village | 756.92 mi (1,218.15 km) |
| Grunheide to Onnaing | 462.16 mi (743.77 km) |
| Grunheide to Orange | 705.67 mi (1,135.67 km) |
| Grunheide to Orchies | 474.52 mi (763.67 km) |
| Grunheide to Orleans | 611.85 mi (984.68 km) |
| Grunheide to Orly | 561.40 mi (903.49 km) |
| Grunheide to Ormesson-sur-Marne | 554.23 mi (891.95 km) |
| Grunheide to Orsay | 571.05 mi (919.01 km) |
