| Grantham to Collegno | 656.34 mi (1,056.28 km) |
| Grantham to Cologno al Serio | 687.30 mi (1,106.10 km) |
| Grantham to Cologno Monzese | 677.66 mi (1,090.59 km) |
| Grantham to Colorno | 743.13 mi (1,195.96 km) |
| Grantham to Comacchio | 811.85 mi (1,306.54 km) |
| Grantham to Comiso | 1,325.41 mi (2,133.04 km) |
| Grantham to Como | 656.59 mi (1,056.69 km) |
| Grantham to Concordia Sagittaria | 780.65 mi (1,256.33 km) |
| Grantham to Concorezzo | 676.03 mi (1,087.96 km) |
| Grantham to Conegliano | 755.83 mi (1,216.39 km) |
| Grantham to Conselice | 810.31 mi (1,304.07 km) |
| Grantham to Conselve | 774.03 mi (1,245.67 km) |
| Grantham to Conversano | 1,170.05 mi (1,883.02 km) |
| Grantham to Copertino | 1,238.44 mi (1,993.08 km) |
| Grantham to Copparo | 790.15 mi (1,271.63 km) |
