| Clarkston to Pontedera | 4,873.93 mi (7,843.83 km) |
| Clarkston to Pontinia | 5,057.59 mi (8,139.40 km) |
| Clarkston to Porcari | 4,867.29 mi (7,833.15 km) |
| Clarkston to Porcia | 4,882.39 mi (7,857.45 km) |
| Clarkston to Pordenone | 4,884.35 mi (7,860.60 km) |
| Clarkston to Portici | 5,136.40 mi (8,266.23 km) |
| Clarkston to Porto Empedocle | 5,226.95 mi (8,411.97 km) |
| Clarkston to Porto Recanati | 5,013.91 mi (8,069.11 km) |
| Clarkston to Porto Sant'Elpidio | 5,023.40 mi (8,084.38 km) |
| Clarkston to Porto Tolle | 4,903.86 mi (7,892.00 km) |
| Clarkston to Porto Torres | 4,866.47 mi (7,831.82 km) |
| Clarkston to Portoferraio | 4,887.97 mi (7,866.43 km) |
| Clarkston to Portogruaro | 4,897.66 mi (7,882.02 km) |
| Clarkston to Portomaggiore | 4,890.12 mi (7,869.89 km) |
| Clarkston to Potenza | 5,208.08 mi (8,381.59 km) |
