| Gourock to Pontedera | 1,088.41 mi (1,751.63 km) |
| Gourock to Pontinia | 1,285.87 mi (2,069.41 km) |
| Gourock to Porcari | 1,077.65 mi (1,734.30 km) |
| Gourock to Porcia | 1,020.30 mi (1,642.01 km) |
| Gourock to Pordenone | 1,022.22 mi (1,645.10 km) |
| Gourock to Portici | 1,356.66 mi (2,183.33 km) |
| Gourock to Porto Empedocle | 1,545.02 mi (2,486.46 km) |
| Gourock to Porto Recanati | 1,188.85 mi (1,913.27 km) |
| Gourock to Porto Sant'Elpidio | 1,200.58 mi (1,932.14 km) |
| Gourock to Porto Tolle | 1,065.02 mi (1,713.99 km) |
| Gourock to Porto Torres | 1,203.12 mi (1,936.23 km) |
| Gourock to Portoferraio | 1,129.31 mi (1,817.45 km) |
| Gourock to Portogruaro | 1,036.70 mi (1,668.40 km) |
| Gourock to Portomaggiore | 1,063.19 mi (1,711.03 km) |
| Gourock to Potenza | 1,409.85 mi (2,268.94 km) |
