| Southborough to Chivasso | 541.09 mi (870.80 km) |
| Southborough to Ciampino | 870.99 mi (1,401.72 km) |
| Southborough to Cicciano | 978.48 mi (1,574.71 km) |
| Southborough to Cingoli | 809.51 mi (1,302.78 km) |
| Southborough to Cinisello Balsamo | 564.19 mi (907.98 km) |
| Southborough to Cinisi | 1,093.72 mi (1,760.17 km) |
| Southborough to Cirie | 530.20 mi (853.28 km) |
| Southborough to Ciro Marina | 1,150.65 mi (1,851.79 km) |
| Southborough to Cislago | 550.88 mi (886.55 km) |
| Southborough to Cisterna di Latina | 889.63 mi (1,431.71 km) |
| Southborough to Cisternino | 1,090.29 mi (1,754.65 km) |
| Southborough to Citta di Castello | 771.44 mi (1,241.51 km) |
| Southborough to Citta Sant'Angelo | 881.17 mi (1,418.11 km) |
| Southborough to Cittadella | 649.99 mi (1,046.05 km) |
| Southborough to Cittanova | 1,172.12 mi (1,886.35 km) |
