| Williamstown to Casamassima | 4,592.26 mi (7,390.53 km) |
| Williamstown to Casandrino | 4,475.30 mi (7,202.30 km) |
| Williamstown to Casapulla | 4,471.93 mi (7,196.88 km) |
| Williamstown to Casarano | 4,682.61 mi (7,535.93 km) |
| Williamstown to Casatenovo | 4,097.43 mi (6,594.18 km) |
| Williamstown to Casciana Terme | 4,224.52 mi (6,798.71 km) |
| Williamstown to Cascina | 4,216.33 mi (6,785.52 km) |
| Williamstown to Caselle Torinese | 4,041.55 mi (6,504.25 km) |
| Williamstown to Caserta | 4,474.15 mi (7,200.45 km) |
| Williamstown to Casier | 4,226.53 mi (6,801.94 km) |
| Williamstown to Casorate Primo | 4,096.72 mi (6,593.03 km) |
| Williamstown to Casoria | 4,478.73 mi (7,207.82 km) |
| Williamstown to Cassano al Ionio | 4,609.74 mi (7,418.67 km) |
| Williamstown to Cassano d'Adda | 4,111.45 mi (6,616.74 km) |
| Williamstown to Cassano delle Murge | 4,588.20 mi (7,383.99 km) |
