| Witham to Cascais | 1,026.45 mi (1,651.92 km) |
| Witham to Castelo Branco | 914.55 mi (1,471.82 km) |
| Witham to Castro Daire | 855.40 mi (1,376.63 km) |
| Witham to Celorico de Basto | 826.91 mi (1,330.79 km) |
| Witham to Chamusca | 964.84 mi (1,552.75 km) |
| Witham to Chaves | 792.67 mi (1,275.68 km) |
| Witham to Cinfaes | 847.52 mi (1,363.96 km) |
| Witham to Coimbra | 909.56 mi (1,463.80 km) |
| Witham to Condeixa-a-Nova | 917.06 mi (1,475.86 km) |
| Witham to Corroios | 1,025.85 mi (1,650.95 km) |
| Witham to Coruche | 990.65 mi (1,594.29 km) |
| Witham to Costa de Caparica | 1,025.85 mi (1,650.95 km) |
| Witham to Covilha | 884.84 mi (1,424.02 km) |
| Witham to Eiras | 907.51 mi (1,460.49 km) |
| Witham to Elvas | 968.88 mi (1,559.27 km) |
