| Rockville to Oliveira de Frades | 3,559.06 mi (5,727.75 km) |
| Rockville to Oliveira do Bairro | 3,548.92 mi (5,711.43 km) |
| Rockville to Oliveira do Hospital | 3,584.06 mi (5,767.99 km) |
| Rockville to Ourem | 3,568.63 mi (5,743.15 km) |
| Rockville to Ovar | 3,533.35 mi (5,686.38 km) |
| Rockville to Pacos de Ferreira | 3,534.36 mi (5,688.00 km) |
| Rockville to Palmela | 3,581.67 mi (5,764.13 km) |
| Rockville to Paredes | 3,539.28 mi (5,695.93 km) |
| Rockville to Paredes de Coura | 3,510.23 mi (5,649.17 km) |
| Rockville to Penacova | 3,565.93 mi (5,738.82 km) |
| Rockville to Penafiel | 3,541.51 mi (5,699.51 km) |
| Rockville to Peniche | 3,537.34 mi (5,692.80 km) |
| Rockville to Peso da Regua | 3,567.04 mi (5,740.60 km) |
| Rockville to Pinhal Novo | 3,579.20 mi (5,760.17 km) |
| Rockville to Pinhel | 3,611.32 mi (5,811.86 km) |
