| Harrow to Oliveira de Frades | 838.18 mi (1,348.92 km) |
| Harrow to Oliveira do Bairro | 857.56 mi (1,380.11 km) |
| Harrow to Oliveira do Hospital | 854.34 mi (1,374.93 km) |
| Harrow to Ourem | 913.88 mi (1,470.74 km) |
| Harrow to Ovar | 838.51 mi (1,349.45 km) |
| Harrow to Pacos de Ferreira | 808.33 mi (1,300.88 km) |
| Harrow to Palmela | 989.89 mi (1,593.08 km) |
| Harrow to Paredes | 811.02 mi (1,305.21 km) |
| Harrow to Paredes de Coura | 772.05 mi (1,242.49 km) |
| Harrow to Penacova | 868.54 mi (1,397.79 km) |
| Harrow to Penafiel | 809.56 mi (1,302.86 km) |
| Harrow to Peniche | 949.91 mi (1,528.73 km) |
| Harrow to Peso da Regua | 801.27 mi (1,289.52 km) |
| Harrow to Pinhal Novo | 986.06 mi (1,586.90 km) |
| Harrow to Pinhel | 811.69 mi (1,306.29 km) |
