| Clayton to Casamassima | 1,239.38 mi (1,994.59 km) |
| Clayton to Casandrino | 1,157.85 mi (1,863.38 km) |
| Clayton to Casapulla | 1,151.26 mi (1,852.78 km) |
| Clayton to Casarano | 1,330.61 mi (2,141.41 km) |
| Clayton to Casatenovo | 745.76 mi (1,200.18 km) |
| Clayton to Casciana Terme | 905.01 mi (1,456.47 km) |
| Clayton to Cascina | 894.20 mi (1,439.07 km) |
| Clayton to Caselle Torinese | 729.26 mi (1,173.63 km) |
| Clayton to Caserta | 1,152.75 mi (1,855.17 km) |
| Clayton to Casier | 841.79 mi (1,354.73 km) |
| Clayton to Casorate Primo | 758.42 mi (1,220.55 km) |
| Clayton to Casoria | 1,161.23 mi (1,868.81 km) |
| Clayton to Cassano al Ionio | 1,285.26 mi (2,068.43 km) |
| Clayton to Cassano d'Adda | 760.83 mi (1,224.44 km) |
| Clayton to Cassano delle Murge | 1,238.21 mi (1,992.70 km) |
