| Grimbergen to Orvault | 371.01 mi (597.09 km) |
| Grimbergen to Osny | 165.49 mi (266.33 km) |
| Grimbergen to Ostwald | 221.77 mi (356.91 km) |
| Grimbergen to Ouistreham | 235.24 mi (378.59 km) |
| Grimbergen to Oullins | 361.08 mi (581.10 km) |
| Grimbergen to Outreau | 122.78 mi (197.60 km) |
| Grimbergen to Oyonnax | 328.34 mi (528.41 km) |
| Grimbergen to Ozoir-la-Ferriere | 167.12 mi (268.95 km) |
| Grimbergen to Pace | 336.35 mi (541.30 km) |
| Grimbergen to Palaiseau | 180.48 mi (290.46 km) |
| Grimbergen to Pamiers | 555.55 mi (894.07 km) |
| Grimbergen to Panazol | 379.10 mi (610.10 km) |
| Grimbergen to Pantin | 166.04 mi (267.22 km) |
| Grimbergen to Paray-le-Monial | 309.92 mi (498.77 km) |
| Grimbergen to Parempuyre | 473.30 mi (761.70 km) |
