| Riom to Castelo Branco | 681.09 mi (1,096.10 km) |
| Riom to Castro Daire | 652.22 mi (1,049.65 km) |
| Riom to Celorico de Basto | 636.25 mi (1,023.95 km) |
| Riom to Chamusca | 741.68 mi (1,193.63 km) |
| Riom to Chaves | 599.93 mi (965.50 km) |
| Riom to Cinfaes | 652.86 mi (1,050.68 km) |
| Riom to Coimbra | 701.55 mi (1,129.04 km) |
| Riom to Condeixa-a-Nova | 708.51 mi (1,140.24 km) |
| Riom to Corroios | 802.33 mi (1,291.23 km) |
| Riom to Coruche | 761.61 mi (1,225.69 km) |
| Riom to Costa de Caparica | 804.30 mi (1,294.40 km) |
| Riom to Covilha | 660.15 mi (1,062.41 km) |
| Riom to Eiras | 700.02 mi (1,126.58 km) |
| Riom to Elvas | 713.11 mi (1,147.65 km) |
| Riom to Entroncamento | 735.84 mi (1,184.21 km) |
