| Helsinki to Civita Castellana | 1,343.41 mi (2,162.01 km) |
| Helsinki to Civitanova Marche | 1,256.36 mi (2,021.91 km) |
| Helsinki to Civitavecchia | 1,366.48 mi (2,199.14 km) |
| Helsinki to Civitella in Val di Chiana | 1,282.57 mi (2,064.10 km) |
| Helsinki to Clusone | 1,161.16 mi (1,868.71 km) |
| Helsinki to Coccaglio | 1,180.41 mi (1,899.68 km) |
| Helsinki to Codigoro | 1,184.22 mi (1,905.83 km) |
| Helsinki to Codogno | 1,211.27 mi (1,949.35 km) |
| Helsinki to Codroipo | 1,096.20 mi (1,764.16 km) |
| Helsinki to Cogoleto | 1,281.84 mi (2,062.92 km) |
| Helsinki to Colle di Val d'Elsa | 1,294.29 mi (2,082.96 km) |
| Helsinki to Colle Salvetti | 1,293.82 mi (2,082.20 km) |
| Helsinki to Collecchio | 1,226.31 mi (1,973.55 km) |
| Helsinki to Colleferro | 1,370.58 mi (2,205.73 km) |
| Helsinki to Collegno | 1,263.54 mi (2,033.48 km) |
