| Oud-Heverlee to Orvault | 376.14 mi (605.34 km) |
| Oud-Heverlee to Osny | 168.60 mi (271.33 km) |
| Oud-Heverlee to Ostwald | 208.32 mi (335.25 km) |
| Oud-Heverlee to Ouistreham | 243.37 mi (391.66 km) |
| Oud-Heverlee to Oullins | 353.70 mi (569.23 km) |
| Oud-Heverlee to Outreau | 134.56 mi (216.56 km) |
| Oud-Heverlee to Oyonnax | 319.46 mi (514.13 km) |
| Oud-Heverlee to Ozoir-la-Ferriere | 167.36 mi (269.34 km) |
| Oud-Heverlee to Pace | 343.30 mi (552.49 km) |
| Oud-Heverlee to Palaiseau | 181.92 mi (292.77 km) |
| Oud-Heverlee to Pamiers | 552.18 mi (888.64 km) |
| Oud-Heverlee to Panazol | 377.85 mi (608.10 km) |
| Oud-Heverlee to Pantin | 167.56 mi (269.66 km) |
| Oud-Heverlee to Paray-le-Monial | 303.81 mi (488.93 km) |
| Oud-Heverlee to Parempuyre | 473.99 mi (762.82 km) |
