| Southborough to Casamassima | 1,060.95 mi (1,707.44 km) |
| Southborough to Casandrino | 970.99 mi (1,562.66 km) |
| Southborough to Casapulla | 964.90 mi (1,552.85 km) |
| Southborough to Casarano | 1,152.87 mi (1,855.37 km) |
| Southborough to Casatenovo | 559.99 mi (901.21 km) |
| Southborough to Casciana Terme | 714.91 mi (1,150.54 km) |
| Southborough to Cascina | 704.41 mi (1,133.63 km) |
| Southborough to Caselle Torinese | 534.74 mi (860.59 km) |
| Southborough to Caserta | 966.54 mi (1,555.49 km) |
| Southborough to Casier | 669.25 mi (1,077.05 km) |
| Southborough to Casorate Primo | 569.51 mi (916.53 km) |
| Southborough to Casoria | 974.42 mi (1,568.17 km) |
| Southborough to Cassano al Ionio | 1,101.16 mi (1,772.15 km) |
| Southborough to Cassano d'Adda | 575.07 mi (925.48 km) |
| Southborough to Cassano delle Murge | 1,059.05 mi (1,704.38 km) |
