| Red Oak to Cascais | 4,733.60 mi (7,618.00 km) |
| Red Oak to Castelo Branco | 4,793.07 mi (7,713.71 km) |
| Red Oak to Castro Daire | 4,740.34 mi (7,628.83 km) |
| Red Oak to Celorico de Basto | 4,723.07 mi (7,601.05 km) |
| Red Oak to Chamusca | 4,759.74 mi (7,660.07 km) |
| Red Oak to Chaves | 4,737.41 mi (7,624.12 km) |
| Red Oak to Cinfaes | 4,725.04 mi (7,604.22 km) |
| Red Oak to Coimbra | 4,736.97 mi (7,623.41 km) |
| Red Oak to Condeixa-a-Nova | 4,736.35 mi (7,622.42 km) |
| Red Oak to Corroios | 4,749.09 mi (7,642.92 km) |
| Red Oak to Coruche | 4,769.30 mi (7,675.45 km) |
| Red Oak to Costa de Caparica | 4,744.07 mi (7,634.84 km) |
| Red Oak to Covilha | 4,779.12 mi (7,691.25 km) |
| Red Oak to Eiras | 4,736.31 mi (7,622.35 km) |
| Red Oak to Elvas | 4,838.63 mi (7,787.03 km) |
