| Gretna to Penne | 5,493.18 mi (8,840.42 km) |
| Gretna to Pergine Valsugana | 5,253.19 mi (8,454.19 km) |
| Gretna to Perugia | 5,403.21 mi (8,695.62 km) |
| Gretna to Pesaro | 5,397.35 mi (8,686.19 km) |
| Gretna to Pescantina | 5,257.12 mi (8,460.51 km) |
| Gretna to Pescara | 5,505.63 mi (8,860.46 km) |
| Gretna to Peschiera del Garda | 5,251.03 mi (8,450.71 km) |
| Gretna to Pescia | 5,302.24 mi (8,533.13 km) |
| Gretna to Petilia Policastro | 5,742.91 mi (9,242.32 km) |
| Gretna to Piacenza | 5,221.47 mi (8,403.14 km) |
| Gretna to Pianella | 5,500.79 mi (8,852.66 km) |
| Gretna to Pianezza | 5,126.30 mi (8,249.98 km) |
| Gretna to Pianiga | 5,306.28 mi (8,539.63 km) |
| Gretna to Piano di Sorrento | 5,580.52 mi (8,980.98 km) |
| Gretna to Pianoro | 5,313.92 mi (8,551.94 km) |
