| Rockville to Pombal | 3,558.51 mi (5,726.87 km) |
| Rockville to Ponta Delgada | 2,750.84 mi (4,427.06 km) |
| Rockville to Ponta do Sol | 3,330.02 mi (5,359.15 km) |
| Rockville to Ponte da Barca | 3,520.03 mi (5,664.94 km) |
| Rockville to Ponte de Lima | 3,513.67 mi (5,654.70 km) |
| Rockville to Ponte de Sor | 3,606.46 mi (5,804.04 km) |
| Rockville to Portalegre | 3,634.06 mi (5,848.46 km) |
| Rockville to Portimao | 3,640.00 mi (5,858.01 km) |
| Rockville to Porto | 3,526.31 mi (5,675.05 km) |
| Rockville to Porto de Mos | 3,557.62 mi (5,725.43 km) |
| Rockville to Povoa de Lanhoso | 3,533.13 mi (5,686.02 km) |
| Rockville to Povoa de Santa Iria | 3,565.21 mi (5,737.65 km) |
| Rockville to Povoa de Varzim | 3,514.07 mi (5,655.34 km) |
| Rockville to Praia da Vitoria | 2,657.80 mi (4,277.32 km) |
| Rockville to Praia do Carvoeiro | 3,644.40 mi (5,865.10 km) |
