| Grimbergen to Poggio a Caiano | 582.18 mi (936.93 km) |
| Grimbergen to Poggio Renatico | 538.01 mi (865.84 km) |
| Grimbergen to Poggiomarino | 852.36 mi (1,371.74 km) |
| Grimbergen to Poirino | 445.17 mi (716.43 km) |
| Grimbergen to Policoro | 947.65 mi (1,525.09 km) |
| Grimbergen to Polistena | 1,036.23 mi (1,667.65 km) |
| Grimbergen to Pomezia | 747.23 mi (1,202.56 km) |
| Grimbergen to Pomigliano d'Arco | 841.40 mi (1,354.10 km) |
| Grimbergen to Pompei | 853.96 mi (1,374.31 km) |
| Grimbergen to Ponsacco | 583.81 mi (939.54 km) |
| Grimbergen to Pontassieve | 594.08 mi (956.08 km) |
| Grimbergen to Ponte Buggianese | 572.90 mi (921.99 km) |
| Grimbergen to Ponte San Pietro | 433.40 mi (697.49 km) |
| Grimbergen to Pontecorvo | 789.43 mi (1,270.46 km) |
| Grimbergen to Pontedera | 581.00 mi (935.02 km) |
