| Williamstown to Celano | 4,403.28 mi (7,086.39 km) |
| Williamstown to Cento | 4,213.42 mi (6,780.84 km) |
| Williamstown to Cepagatti | 4,415.64 mi (7,106.29 km) |
| Williamstown to Ceprano | 4,420.58 mi (7,114.23 km) |
| Williamstown to Cercola | 4,482.16 mi (7,213.34 km) |
| Williamstown to Cerea | 4,195.19 mi (6,751.51 km) |
| Williamstown to Cerese | 4,180.05 mi (6,727.14 km) |
| Williamstown to Cerignola | 4,535.90 mi (7,299.82 km) |
| Williamstown to Cermenate | 4,087.56 mi (6,578.29 km) |
| Williamstown to Cernusco sul Naviglio | 4,104.08 mi (6,604.88 km) |
| Williamstown to Cerreto Guidi | 4,228.14 mi (6,804.53 km) |
| Williamstown to Cerro Maggiore | 4,084.95 mi (6,574.09 km) |
| Williamstown to Certaldo | 4,242.36 mi (6,827.42 km) |
| Williamstown to Cerveteri | 4,341.93 mi (6,987.67 km) |
| Williamstown to Cervia | 4,275.54 mi (6,880.82 km) |
