| Williamstown to Busto Arsizio | 4,080.34 mi (6,566.67 km) |
| Williamstown to Busto Garolfo | 4,083.85 mi (6,572.32 km) |
| Williamstown to Cabras | 4,251.80 mi (6,842.61 km) |
| Williamstown to Cadelbosco di Sopra | 4,182.82 mi (6,731.60 km) |
| Williamstown to Cadoneghe | 4,217.57 mi (6,787.53 km) |
| Williamstown to Cagli | 4,312.46 mi (6,940.23 km) |
| Williamstown to Cagliari | 4,302.75 mi (6,924.61 km) |
| Williamstown to Cairo Montenotte | 4,092.95 mi (6,586.97 km) |
| Williamstown to Caivano | 4,476.91 mi (7,204.89 km) |
| Williamstown to Calcinaia | 4,219.25 mi (6,790.23 km) |
| Williamstown to Calcinato | 4,152.42 mi (6,682.67 km) |
| Williamstown to Calderara di Reno | 4,218.21 mi (6,788.56 km) |
| Williamstown to Caldogno | 4,193.96 mi (6,749.52 km) |
| Williamstown to Calenzano | 4,237.17 mi (6,819.07 km) |
| Williamstown to Calolziocorte | 4,099.46 mi (6,597.44 km) |
