| Boulder City to Benavente | 5,448.87 mi (8,769.11 km) |
| Boulder City to Bombarral | 5,421.10 mi (8,724.41 km) |
| Boulder City to Bougado | 5,359.65 mi (8,625.53 km) |
| Boulder City to Braga | 5,356.47 mi (8,620.41 km) |
| Boulder City to Braganca | 5,413.47 mi (8,712.13 km) |
| Boulder City to Cabeceiras de Basto | 5,373.76 mi (8,648.23 km) |
| Boulder City to Cacem | 5,435.37 mi (8,747.38 km) |
| Boulder City to Cadaval | 5,424.91 mi (8,730.55 km) |
| Boulder City to Caldas da Rainha | 5,416.11 mi (8,716.39 km) |
| Boulder City to Calheta | 5,322.14 mi (8,565.16 km) |
| Boulder City to Camara de Lobos | 5,332.33 mi (8,581.55 km) |
| Boulder City to Canico | 5,340.56 mi (8,594.80 km) |
| Boulder City to Cantanhede | 5,399.66 mi (8,689.92 km) |
| Boulder City to Carregal do Sal | 5,420.80 mi (8,723.93 km) |
| Boulder City to Cartaxo | 5,441.88 mi (8,757.86 km) |
