| Round Rock to Campodarsego | 5,582.46 mi (8,984.10 km) |
| Round Rock to Campogalliano | 5,571.42 mi (8,966.34 km) |
| Round Rock to Campolongo Maggiore | 5,594.34 mi (9,003.22 km) |
| Round Rock to Camponogara | 5,593.03 mi (9,001.12 km) |
| Round Rock to Camposampiero | 5,580.50 mi (8,980.95 km) |
| Round Rock to Canegrate | 5,459.82 mi (8,786.73 km) |
| Round Rock to Canelli | 5,465.05 mi (8,795.15 km) |
| Round Rock to Canicatti | 5,991.78 mi (9,642.85 km) |
| Round Rock to Canosa di Puglia | 5,925.48 mi (9,536.14 km) |
| Round Rock to Cantu | 5,461.70 mi (8,789.76 km) |
| Round Rock to Caorle | 5,616.81 mi (9,039.38 km) |
| Round Rock to Capaci | 5,931.87 mi (9,546.42 km) |
| Round Rock to Capannori | 5,592.08 mi (8,999.59 km) |
| Round Rock to Capena | 5,741.37 mi (9,239.85 km) |
| Round Rock to Capo d'Orlando | 5,997.93 mi (9,652.74 km) |
