| Riom to Oliveira do Bairro | 691.80 mi (1,113.34 km) |
| Riom to Oliveira do Hospital | 671.74 mi (1,081.06 km) |
| Riom to Ourem | 731.56 mi (1,177.34 km) |
| Riom to Ovar | 683.49 mi (1,099.97 km) |
| Riom to Pacos de Ferreira | 658.05 mi (1,059.03 km) |
| Riom to Palmela | 794.70 mi (1,278.95 km) |
| Riom to Paredes | 657.67 mi (1,058.41 km) |
| Riom to Paredes de Coura | 642.16 mi (1,033.46 km) |
| Riom to Penacova | 692.95 mi (1,115.20 km) |
| Riom to Penafiel | 655.30 mi (1,054.60 km) |
| Riom to Peniche | 777.61 mi (1,251.44 km) |
| Riom to Peso da Regua | 634.99 mi (1,021.92 km) |
| Riom to Pinhal Novo | 792.21 mi (1,274.93 km) |
| Riom to Pinhel | 620.78 mi (999.05 km) |
| Riom to Pombal | 722.43 mi (1,162.64 km) |
