| North Potomac to Cassina de' Pecchi | 4,226.82 mi (6,802.40 km) |
| North Potomac to Cassino | 4,559.03 mi (7,337.05 km) |
| North Potomac to Castagneto Carducci | 4,358.26 mi (7,013.93 km) |
| North Potomac to Castano Primo | 4,200.03 mi (6,759.29 km) |
| North Potomac to Castel Bolognese | 4,371.07 mi (7,034.55 km) |
| North Potomac to Castel Gandolfo | 4,498.09 mi (7,238.98 km) |
| North Potomac to Castel Goffredo | 4,281.34 mi (6,890.14 km) |
| North Potomac to Castel Maggiore | 4,343.96 mi (6,990.92 km) |
| North Potomac to Castel Mella | 4,260.83 mi (6,857.15 km) |
| North Potomac to Castel San Giorgio | 4,623.57 mi (7,440.92 km) |
| North Potomac to Castel San Giovanni | 4,244.80 mi (6,831.34 km) |
| North Potomac to Castel San Pietro Terme | 4,358.91 mi (7,015.00 km) |
| North Potomac to Castel Volturno | 4,579.15 mi (7,369.44 km) |
| North Potomac to Castelbuono | 4,703.58 mi (7,569.68 km) |
| North Potomac to Casteldaccia | 4,673.32 mi (7,520.99 km) |
