| Grimstad to Cividale del Friuli | 869.63 mi (1,399.54 km) |
| Grimstad to Civita Castellana | 1,120.83 mi (1,803.80 km) |
| Grimstad to Civitanova Marche | 1,062.38 mi (1,709.73 km) |
| Grimstad to Civitavecchia | 1,130.71 mi (1,819.70 km) |
| Grimstad to Civitella in Val di Chiana | 1,039.80 mi (1,673.40 km) |
| Grimstad to Clusone | 862.59 mi (1,388.20 km) |
| Grimstad to Coccaglio | 884.74 mi (1,423.85 km) |
| Grimstad to Codigoro | 945.11 mi (1,521.00 km) |
| Grimstad to Codogno | 911.89 mi (1,467.55 km) |
| Grimstad to Codroipo | 874.75 mi (1,407.77 km) |
| Grimstad to Cogoleto | 963.93 mi (1,551.30 km) |
| Grimstad to Colle di Val d'Elsa | 1,038.03 mi (1,670.54 km) |
| Grimstad to Colle Salvetti | 1,021.68 mi (1,644.24 km) |
| Grimstad to Collecchio | 941.53 mi (1,515.25 km) |
| Grimstad to Colleferro | 1,163.50 mi (1,872.47 km) |
