| Rockford to Benavente | 4,052.53 mi (6,521.91 km) |
| Rockford to Bombarral | 4,025.45 mi (6,478.33 km) |
| Rockford to Bougado | 3,979.71 mi (6,404.73 km) |
| Rockford to Braga | 3,978.54 mi (6,402.84 km) |
| Rockford to Braganca | 4,043.51 mi (6,507.41 km) |
| Rockford to Cabeceiras de Basto | 3,997.15 mi (6,432.80 km) |
| Rockford to Cacem | 4,036.21 mi (6,495.66 km) |
| Rockford to Cadaval | 4,029.22 mi (6,484.41 km) |
| Rockford to Caldas da Rainha | 4,021.39 mi (6,471.80 km) |
| Rockford to Calheta | 3,879.61 mi (6,243.63 km) |
| Rockford to Camara de Lobos | 3,889.97 mi (6,260.31 km) |
| Rockford to Canico | 3,898.25 mi (6,273.63 km) |
| Rockford to Cantanhede | 4,012.80 mi (6,457.98 km) |
| Rockford to Carregal do Sal | 4,036.58 mi (6,496.25 km) |
| Rockford to Cartaxo | 4,046.71 mi (6,512.56 km) |
