| Clayton to Cassina de' Pecchi | 757.35 mi (1,218.84 km) |
| Clayton to Cassino | 1,113.34 mi (1,791.75 km) |
| Clayton to Castagneto Carducci | 925.25 mi (1,489.04 km) |
| Clayton to Castano Primo | 738.25 mi (1,188.10 km) |
| Clayton to Castel Bolognese | 895.78 mi (1,441.61 km) |
| Clayton to Castel Gandolfo | 1,064.79 mi (1,713.61 km) |
| Clayton to Castel Goffredo | 802.28 mi (1,291.14 km) |
| Clayton to Castel Maggiore | 868.98 mi (1,398.48 km) |
| Clayton to Castel Mella | 781.54 mi (1,257.76 km) |
| Clayton to Castel San Giorgio | 1,179.76 mi (1,898.65 km) |
| Clayton to Castel San Giovanni | 785.22 mi (1,263.69 km) |
| Clayton to Castel San Pietro Terme | 884.63 mi (1,423.67 km) |
| Clayton to Castel Volturno | 1,141.38 mi (1,836.87 km) |
| Clayton to Castelbuono | 1,329.60 mi (2,139.78 km) |
| Clayton to Casteldaccia | 1,307.53 mi (2,104.26 km) |
