| North Potomac to Celano | 4,525.67 mi (7,283.36 km) |
| North Potomac to Cento | 4,334.75 mi (6,976.11 km) |
| North Potomac to Cepagatti | 4,537.73 mi (7,302.78 km) |
| North Potomac to Ceprano | 4,543.28 mi (7,311.71 km) |
| North Potomac to Cercola | 4,605.03 mi (7,411.09 km) |
| North Potomac to Cerea | 4,316.23 mi (6,946.30 km) |
| North Potomac to Cerese | 4,301.31 mi (6,922.29 km) |
| North Potomac to Cerignola | 4,658.13 mi (7,496.54 km) |
| North Potomac to Cermenate | 4,208.80 mi (6,773.41 km) |
| North Potomac to Cernusco sul Naviglio | 4,225.39 mi (6,800.10 km) |
| North Potomac to Cerreto Guidi | 4,350.20 mi (7,000.98 km) |
| North Potomac to Cerro Maggiore | 4,206.29 mi (6,769.37 km) |
| North Potomac to Certaldo | 4,364.52 mi (7,024.02 km) |
| North Potomac to Cerveteri | 4,464.75 mi (7,185.31 km) |
| North Potomac to Cervia | 4,396.91 mi (7,076.14 km) |
