| Riga to Cividale del Friuli | 876.58 mi (1,410.73 km) |
| Riga to Civita Castellana | 1,136.13 mi (1,828.42 km) |
| Riga to Civitanova Marche | 1,046.34 mi (1,683.92 km) |
| Riga to Civitavecchia | 1,160.94 mi (1,868.36 km) |
| Riga to Civitella in Val di Chiana | 1,080.06 mi (1,738.19 km) |
| Riga to Clusone | 974.11 mi (1,567.68 km) |
| Riga to Coccaglio | 991.95 mi (1,596.38 km) |
| Riga to Codigoro | 983.65 mi (1,583.03 km) |
| Riga to Codogno | 1,022.59 mi (1,645.70 km) |
| Riga to Codroipo | 895.12 mi (1,440.56 km) |
| Riga to Cogoleto | 1,095.30 mi (1,762.71 km) |
| Riga to Colle di Val d'Elsa | 1,094.03 mi (1,760.67 km) |
| Riga to Colle Salvetti | 1,096.71 mi (1,764.99 km) |
| Riga to Collecchio | 1,033.82 mi (1,663.77 km) |
| Riga to Colleferro | 1,160.41 mi (1,867.50 km) |
