| Grimbergen to Pontinia | 776.53 mi (1,249.70 km) |
| Grimbergen to Porcari | 569.71 mi (916.86 km) |
| Grimbergen to Porcia | 509.47 mi (819.91 km) |
| Grimbergen to Pordenone | 511.42 mi (823.04 km) |
| Grimbergen to Portici | 845.54 mi (1,360.77 km) |
| Grimbergen to Porto Empedocle | 1,043.96 mi (1,680.09 km) |
| Grimbergen to Porto Recanati | 676.12 mi (1,088.11 km) |
| Grimbergen to Porto Sant'Elpidio | 687.86 mi (1,107.00 km) |
| Grimbergen to Porto Tolle | 552.31 mi (888.85 km) |
| Grimbergen to Porto Torres | 723.58 mi (1,164.49 km) |
| Grimbergen to Portoferraio | 626.43 mi (1,008.15 km) |
| Grimbergen to Portogruaro | 525.81 mi (846.21 km) |
| Grimbergen to Portomaggiore | 550.69 mi (886.25 km) |
| Grimbergen to Potenza | 897.30 mi (1,444.07 km) |
| Grimbergen to Potenza Picena | 678.32 mi (1,091.65 km) |
