| Clausthal-Zellerfeld to Pontinia | 729.62 mi (1,174.21 km) |
| Clausthal-Zellerfeld to Porcari | 550.38 mi (885.75 km) |
| Clausthal-Zellerfeld to Porcia | 416.43 mi (670.18 km) |
| Clausthal-Zellerfeld to Pordenone | 417.93 mi (672.59 km) |
| Clausthal-Zellerfeld to Portici | 782.40 mi (1,259.15 km) |
| Clausthal-Zellerfeld to Porto Empedocle | 1,014.57 mi (1,632.79 km) |
| Clausthal-Zellerfeld to Porto Recanati | 598.75 mi (963.60 km) |
| Clausthal-Zellerfeld to Porto Sant'Elpidio | 610.88 mi (983.12 km) |
| Clausthal-Zellerfeld to Porto Tolle | 482.23 mi (776.08 km) |
| Clausthal-Zellerfeld to Porto Torres | 763.35 mi (1,228.49 km) |
| Clausthal-Zellerfeld to Portoferraio | 621.03 mi (999.45 km) |
| Clausthal-Zellerfeld to Portogruaro | 431.24 mi (694.02 km) |
| Clausthal-Zellerfeld to Portomaggiore | 495.48 mi (797.40 km) |
| Clausthal-Zellerfeld to Potenza | 814.31 mi (1,310.51 km) |
| Clausthal-Zellerfeld to Potenza Picena | 602.58 mi (969.76 km) |
