| Thetford to Collegno | 594.02 mi (955.99 km) |
| Thetford to Cologno al Serio | 621.53 mi (1,000.26 km) |
| Thetford to Cologno Monzese | 612.36 mi (985.50 km) |
| Thetford to Colorno | 677.40 mi (1,090.16 km) |
| Thetford to Comacchio | 745.08 mi (1,199.09 km) |
| Thetford to Comiso | 1,261.92 mi (2,030.86 km) |
| Thetford to Como | 591.18 mi (951.41 km) |
| Thetford to Concordia Sagittaria | 713.18 mi (1,147.76 km) |
| Thetford to Concorezzo | 610.60 mi (982.67 km) |
| Thetford to Conegliano | 688.44 mi (1,107.95 km) |
| Thetford to Conselice | 743.86 mi (1,197.12 km) |
| Thetford to Conselve | 707.09 mi (1,137.96 km) |
| Thetford to Conversano | 1,103.02 mi (1,775.13 km) |
| Thetford to Copertino | 1,171.35 mi (1,885.11 km) |
| Thetford to Copparo | 723.44 mi (1,164.27 km) |
