| Clayton to Castelfidardo | 996.08 mi (1,603.03 km) |
| Clayton to Castelfiorentino | 910.79 mi (1,465.77 km) |
| Clayton to Castelfranco di Sopra | 926.66 mi (1,491.31 km) |
| Clayton to Castelfranco di Sotto | 898.92 mi (1,446.67 km) |
| Clayton to Castelfranco Emilia | 857.84 mi (1,380.55 km) |
| Clayton to Castelfranco Veneto | 828.92 mi (1,334.01 km) |
| Clayton to Castellabate | 1,215.99 mi (1,956.94 km) |
| Clayton to Castellammare del Golfo | 1,292.10 mi (2,079.43 km) |
| Clayton to Castellammare di Stabia | 1,178.26 mi (1,896.22 km) |
| Clayton to Castellamonte | 719.04 mi (1,157.18 km) |
| Clayton to Castellana Grotte | 1,251.06 mi (2,013.39 km) |
| Clayton to Castellaneta | 1,257.21 mi (2,023.29 km) |
| Clayton to Castellanza | 738.32 mi (1,188.21 km) |
| Clayton to Castellarano | 851.42 mi (1,370.23 km) |
| Clayton to Castelleone | 781.06 mi (1,257.00 km) |
