| Grimstad to Castrovillari | 1,323.36 mi (2,129.75 km) |
| Grimstad to Catania | 1,469.41 mi (2,364.78 km) |
| Grimstad to Catanzaro | 1,389.79 mi (2,236.66 km) |
| Grimstad to Cattolica | 1,008.73 mi (1,623.40 km) |
| Grimstad to Cava de' Tirreni | 1,248.00 mi (2,008.46 km) |
| Grimstad to Cavallino | 1,315.23 mi (2,116.67 km) |
| Grimstad to Cavarzere | 924.09 mi (1,487.18 km) |
| Grimstad to Cave | 1,157.19 mi (1,862.32 km) |
| Grimstad to Cavriago | 946.05 mi (1,522.52 km) |
| Grimstad to Cavriglia | 1,031.69 mi (1,660.34 km) |
| Grimstad to Cazzago San Martino | 883.60 mi (1,422.02 km) |
| Grimstad to Ceccano | 1,177.24 mi (1,894.58 km) |
| Grimstad to Cecina | 1,041.32 mi (1,675.85 km) |
| Grimstad to Cefalu | 1,424.05 mi (2,291.79 km) |
| Grimstad to Ceglie Messapico | 1,283.38 mi (2,065.39 km) |
