| Boulder City to Cascais | 5,433.65 mi (8,744.61 km) |
| Boulder City to Castelo Branco | 5,467.80 mi (8,799.57 km) |
| Boulder City to Castro Daire | 5,403.87 mi (8,696.69 km) |
| Boulder City to Celorico de Basto | 5,380.76 mi (8,659.49 km) |
| Boulder City to Chamusca | 5,446.20 mi (8,764.81 km) |
| Boulder City to Chaves | 5,387.32 mi (8,670.06 km) |
| Boulder City to Cinfaes | 5,387.18 mi (8,669.82 km) |
| Boulder City to Coimbra | 5,412.24 mi (8,710.15 km) |
| Boulder City to Condeixa-a-Nova | 5,413.24 mi (8,711.76 km) |
| Boulder City to Corroios | 5,448.64 mi (8,768.73 km) |
| Boulder City to Coruche | 5,460.92 mi (8,788.50 km) |
| Boulder City to Costa de Caparica | 5,443.74 mi (8,760.86 km) |
| Boulder City to Covilha | 5,447.95 mi (8,767.62 km) |
| Boulder City to Eiras | 5,411.15 mi (8,708.41 km) |
| Boulder City to Elvas | 5,523.09 mi (8,888.56 km) |
