| Round Lake to Castelfidardo | 4,781.68 mi (7,695.38 km) |
| Round Lake to Castelfiorentino | 4,674.83 mi (7,523.40 km) |
| Round Lake to Castelfranco di Sopra | 4,697.13 mi (7,559.30 km) |
| Round Lake to Castelfranco di Sotto | 4,662.03 mi (7,502.81 km) |
| Round Lake to Castelfranco Emilia | 4,636.04 mi (7,460.98 km) |
| Round Lake to Castelfranco Veneto | 4,624.84 mi (7,442.95 km) |
| Round Lake to Castellabate | 4,978.69 mi (8,012.42 km) |
| Round Lake to Castellammare del Golfo | 4,995.67 mi (8,039.76 km) |
| Round Lake to Castellammare di Stabia | 4,941.13 mi (7,951.99 km) |
| Round Lake to Castellamonte | 4,472.65 mi (7,198.04 km) |
| Round Lake to Castellana Grotte | 5,038.43 mi (8,108.57 km) |
| Round Lake to Castellaneta | 5,040.81 mi (8,112.40 km) |
| Round Lake to Castellanza | 4,509.77 mi (7,257.78 km) |
| Round Lake to Castellarano | 4,626.78 mi (7,446.09 km) |
| Round Lake to Castelleone | 4,556.51 mi (7,333.00 km) |
