| Seal Beach to Cividale del Friuli | 6,145.89 mi (9,890.85 km) |
| Seal Beach to Civita Castellana | 6,318.69 mi (10,168.95 km) |
| Seal Beach to Civitanova Marche | 6,306.64 mi (10,149.55 km) |
| Seal Beach to Civitavecchia | 6,309.31 mi (10,153.86 km) |
| Seal Beach to Civitella in Val di Chiana | 6,236.60 mi (10,036.85 km) |
| Seal Beach to Clusone | 6,050.49 mi (9,737.33 km) |
| Seal Beach to Coccaglio | 6,068.09 mi (9,765.65 km) |
| Seal Beach to Codigoro | 6,173.79 mi (9,935.76 km) |
| Seal Beach to Codogno | 6,080.40 mi (9,785.46 km) |
| Seal Beach to Codroipo | 6,139.69 mi (9,880.88 km) |
| Seal Beach to Cogoleto | 6,085.90 mi (9,794.32 km) |
| Seal Beach to Colle di Val d'Elsa | 6,218.70 mi (10,008.03 km) |
| Seal Beach to Colle Salvetti | 6,187.08 mi (9,957.15 km) |
| Seal Beach to Collecchio | 6,118.20 mi (9,846.28 km) |
| Seal Beach to Colleferro | 6,368.51 mi (10,249.13 km) |
