| Rockford to Castelfidardo | 4,822.56 mi (7,761.16 km) |
| Rockford to Castelfiorentino | 4,716.24 mi (7,590.06 km) |
| Rockford to Castelfranco di Sopra | 4,738.40 mi (7,625.72 km) |
| Rockford to Castelfranco di Sotto | 4,703.46 mi (7,569.48 km) |
| Rockford to Castelfranco Emilia | 4,677.03 mi (7,526.96 km) |
| Rockford to Castelfranco Veneto | 4,665.19 mi (7,507.89 km) |
| Rockford to Castellabate | 5,020.43 mi (8,079.61 km) |
| Rockford to Castellammare del Golfo | 5,038.69 mi (8,108.98 km) |
| Rockford to Castellammare di Stabia | 4,982.84 mi (8,019.11 km) |
| Rockford to Castellamonte | 4,514.06 mi (7,264.67 km) |
| Rockford to Castellana Grotte | 5,079.41 mi (8,174.52 km) |
| Rockford to Castellaneta | 5,081.94 mi (8,178.60 km) |
| Rockford to Castellanza | 4,550.82 mi (7,323.84 km) |
| Rockford to Castellarano | 4,667.85 mi (7,512.18 km) |
| Rockford to Castelleone | 4,597.51 mi (7,398.97 km) |
