| Clacton-on-Sea to Oliveira de Frades | 883.92 mi (1,422.54 km) |
| Clacton-on-Sea to Oliveira do Bairro | 903.79 mi (1,454.51 km) |
| Clacton-on-Sea to Oliveira do Hospital | 898.67 mi (1,446.26 km) |
| Clacton-on-Sea to Ourem | 958.95 mi (1,543.28 km) |
| Clacton-on-Sea to Ovar | 885.64 mi (1,425.30 km) |
| Clacton-on-Sea to Pacos de Ferreira | 855.55 mi (1,376.88 km) |
| Clacton-on-Sea to Palmela | 1,034.28 mi (1,664.51 km) |
| Clacton-on-Sea to Paredes | 857.95 mi (1,380.74 km) |
| Clacton-on-Sea to Paredes de Coura | 820.83 mi (1,321.00 km) |
| Clacton-on-Sea to Penacova | 913.83 mi (1,470.68 km) |
| Clacton-on-Sea to Penafiel | 856.38 mi (1,378.20 km) |
| Clacton-on-Sea to Peniche | 996.47 mi (1,603.66 km) |
| Clacton-on-Sea to Peso da Regua | 846.67 mi (1,362.59 km) |
| Clacton-on-Sea to Pinhal Novo | 1,030.56 mi (1,658.52 km) |
| Clacton-on-Sea to Pinhel | 854.47 mi (1,375.13 km) |
