| Clarkston to Cassina de' Pecchi | 4,758.88 mi (7,658.67 km) |
| Clarkston to Cassino | 5,089.45 mi (8,190.68 km) |
| Clarkston to Castagneto Carducci | 4,888.91 mi (7,867.95 km) |
| Clarkston to Castano Primo | 4,731.97 mi (7,615.38 km) |
| Clarkston to Castel Bolognese | 4,902.96 mi (7,890.55 km) |
| Clarkston to Castel Gandolfo | 5,028.25 mi (8,092.19 km) |
| Clarkston to Castel Goffredo | 4,813.51 mi (7,746.60 km) |
| Clarkston to Castel Maggiore | 4,875.90 mi (7,847.00 km) |
| Clarkston to Castel Mella | 4,793.06 mi (7,713.68 km) |
| Clarkston to Castel San Giorgio | 5,153.71 mi (8,294.10 km) |
| Clarkston to Castel San Giovanni | 4,776.57 mi (7,687.15 km) |
| Clarkston to Castel San Pietro Terme | 4,890.81 mi (7,871.00 km) |
| Clarkston to Castel Volturno | 5,109.20 mi (8,222.47 km) |
| Clarkston to Castelbuono | 5,230.25 mi (8,417.28 km) |
| Clarkston to Casteldaccia | 5,199.78 mi (8,368.23 km) |
