| Middle River to Pontedera | 4,297.49 mi (6,916.14 km) |
| Middle River to Pontinia | 4,482.01 mi (7,213.10 km) |
| Middle River to Porcari | 4,290.75 mi (6,905.30 km) |
| Middle River to Porcia | 4,304.83 mi (6,927.96 km) |
| Middle River to Pordenone | 4,306.79 mi (6,931.11 km) |
| Middle River to Portici | 4,560.81 mi (7,339.92 km) |
| Middle River to Porto Empedocle | 4,655.42 mi (7,492.17 km) |
| Middle River to Porto Recanati | 4,436.94 mi (7,140.57 km) |
| Middle River to Porto Sant'Elpidio | 4,446.49 mi (7,155.93 km) |
| Middle River to Porto Tolle | 4,326.54 mi (6,962.89 km) |
| Middle River to Porto Torres | 4,293.45 mi (6,909.63 km) |
| Middle River to Portoferraio | 4,312.21 mi (6,939.82 km) |
| Middle River to Portogruaro | 4,320.11 mi (6,952.55 km) |
| Middle River to Portomaggiore | 4,312.95 mi (6,941.02 km) |
| Middle River to Potenza | 4,632.13 mi (7,454.69 km) |
