| Black Forest to Cividale del Friuli | 5,419.72 mi (8,722.20 km) |
| Black Forest to Civita Castellana | 5,572.01 mi (8,967.28 km) |
| Black Forest to Civitanova Marche | 5,568.96 mi (8,962.37 km) |
| Black Forest to Civitavecchia | 5,559.71 mi (8,947.48 km) |
| Black Forest to Civitella in Val di Chiana | 5,492.30 mi (8,839.00 km) |
| Black Forest to Clusone | 5,311.17 mi (8,547.50 km) |
| Black Forest to Coccaglio | 5,327.40 mi (8,573.62 km) |
| Black Forest to Codigoro | 5,437.12 mi (8,750.20 km) |
| Black Forest to Codogno | 5,336.99 mi (8,589.06 km) |
| Black Forest to Codroipo | 5,411.24 mi (8,708.55 km) |
| Black Forest to Cogoleto | 5,335.67 mi (8,586.92 km) |
| Black Forest to Colle di Val d'Elsa | 5,472.33 mi (8,806.87 km) |
| Black Forest to Colle Salvetti | 5,439.40 mi (8,753.86 km) |
| Black Forest to Collecchio | 5,374.65 mi (8,649.66 km) |
| Black Forest to Colleferro | 5,621.59 mi (9,047.08 km) |
