| Hardenberg to Cividale del Friuli | 541.54 mi (871.52 km) |
| Hardenberg to Civita Castellana | 758.92 mi (1,221.37 km) |
| Hardenberg to Civitanova Marche | 719.23 mi (1,157.48 km) |
| Hardenberg to Civitavecchia | 762.32 mi (1,226.84 km) |
| Hardenberg to Civitella in Val di Chiana | 674.33 mi (1,085.23 km) |
| Hardenberg to Clusone | 485.52 mi (781.37 km) |
| Hardenberg to Coccaglio | 507.11 mi (816.11 km) |
| Hardenberg to Codigoro | 589.84 mi (949.26 km) |
| Hardenberg to Codogno | 530.53 mi (853.80 km) |
| Hardenberg to Codroipo | 538.52 mi (866.66 km) |
| Hardenberg to Cogoleto | 572.53 mi (921.40 km) |
| Hardenberg to Colle di Val d'Elsa | 666.58 mi (1,072.75 km) |
| Hardenberg to Colle Salvetti | 644.49 mi (1,037.21 km) |
| Hardenberg to Collecchio | 564.33 mi (908.21 km) |
| Hardenberg to Colleferro | 805.89 mi (1,296.95 km) |
