| Westerlo to Orvault | 395.45 mi (636.41 km) |
| Westerlo to Osny | 188.60 mi (303.52 km) |
| Westerlo to Ostwald | 214.81 mi (345.70 km) |
| Westerlo to Ouistreham | 260.61 mi (419.42 km) |
| Westerlo to Oullins | 370.95 mi (596.98 km) |
| Westerlo to Outreau | 147.15 mi (236.82 km) |
| Westerlo to Oyonnax | 335.22 mi (539.49 km) |
| Westerlo to Ozoir-la-Ferriere | 187.77 mi (302.19 km) |
| Westerlo to Pace | 361.51 mi (581.79 km) |
| Westerlo to Palaiseau | 202.25 mi (325.50 km) |
| Westerlo to Pamiers | 571.84 mi (920.29 km) |
| Westerlo to Panazol | 398.13 mi (640.73 km) |
| Westerlo to Pantin | 187.88 mi (302.37 km) |
| Westerlo to Paray-le-Monial | 322.10 mi (518.37 km) |
| Westerlo to Parempuyre | 494.40 mi (795.67 km) |
