| Keystone to Carmignano | 5,068.92 mi (8,157.64 km) |
| Keystone to Carovigno | 5,468.49 mi (8,800.68 km) |
| Keystone to Carpenedolo | 5,000.82 mi (8,048.04 km) |
| Keystone to Carpi | 5,036.64 mi (8,105.69 km) |
| Keystone to Carrara | 5,019.86 mi (8,078.68 km) |
| Keystone to Carugate | 4,946.67 mi (7,960.90 km) |
| Keystone to Casal di Principe | 5,293.90 mi (8,519.70 km) |
| Keystone to Casale Monferrato | 4,917.69 mi (7,914.25 km) |
| Keystone to Casale sul Sile | 5,079.21 mi (8,174.20 km) |
| Keystone to Casalecchio di Reno | 5,062.86 mi (8,147.89 km) |
| Keystone to Casalgrande | 5,035.23 mi (8,103.43 km) |
| Keystone to Casalmaggiore | 5,010.08 mi (8,062.94 km) |
| Keystone to Casalnuovo di Napoli | 5,307.08 mi (8,540.93 km) |
| Keystone to Casalpusterlengo | 4,970.53 mi (7,999.29 km) |
| Keystone to Casaluce | 5,297.53 mi (8,525.55 km) |
