| San Luis Obispo to Cividale del Friuli | 6,131.16 mi (9,867.15 km) |
| San Luis Obispo to Civita Castellana | 6,313.12 mi (10,159.99 km) |
| San Luis Obispo to Civitanova Marche | 6,296.70 mi (10,133.56 km) |
| San Luis Obispo to Civitavecchia | 6,305.25 mi (10,147.32 km) |
| San Luis Obispo to Civitella in Val di Chiana | 6,230.11 mi (10,026.39 km) |
| San Luis Obispo to Clusone | 6,042.18 mi (9,723.94 km) |
| San Luis Obispo to Coccaglio | 6,060.37 mi (9,753.22 km) |
| San Luis Obispo to Codigoro | 6,163.82 mi (9,919.70 km) |
| San Luis Obispo to Codogno | 6,073.96 mi (9,775.10 km) |
| San Luis Obispo to Codroipo | 6,126.02 mi (9,858.88 km) |
| San Luis Obispo to Cogoleto | 6,082.85 mi (9,789.40 km) |
| San Luis Obispo to Colle di Val d'Elsa | 6,213.28 mi (9,999.31 km) |
| San Luis Obispo to Colle Salvetti | 6,182.42 mi (9,949.65 km) |
| San Luis Obispo to Collecchio | 6,111.70 mi (9,835.83 km) |
| San Luis Obispo to Colleferro | 6,362.90 mi (10,240.10 km) |
