| Round Lake Beach to Cascais | 3,984.82 mi (6,412.95 km) |
| Round Lake Beach to Castelo Branco | 4,032.84 mi (6,490.23 km) |
| Round Lake Beach to Castro Daire | 3,974.95 mi (6,397.07 km) |
| Round Lake Beach to Celorico de Basto | 3,955.14 mi (6,365.18 km) |
| Round Lake Beach to Chamusca | 4,004.64 mi (6,444.84 km) |
| Round Lake Beach to Chaves | 3,966.40 mi (6,383.31 km) |
| Round Lake Beach to Cinfaes | 3,958.98 mi (6,371.36 km) |
| Round Lake Beach to Coimbra | 3,976.65 mi (6,399.81 km) |
| Round Lake Beach to Condeixa-a-Nova | 3,976.75 mi (6,399.96 km) |
| Round Lake Beach to Corroios | 4,000.15 mi (6,437.63 km) |
| Round Lake Beach to Coruche | 4,016.67 mi (6,464.20 km) |
| Round Lake Beach to Costa de Caparica | 3,995.17 mi (6,429.60 km) |
| Round Lake Beach to Covilha | 4,016.23 mi (6,463.50 km) |
| Round Lake Beach to Eiras | 3,975.80 mi (6,398.43 km) |
| Round Lake Beach to Elvas | 4,083.05 mi (6,571.03 km) |
