| Olympia to Cividale del Friuli | 5,479.59 mi (8,818.54 km) |
| Olympia to Civita Castellana | 5,685.60 mi (9,150.08 km) |
| Olympia to Civitanova Marche | 5,656.76 mi (9,103.68 km) |
| Olympia to Civitavecchia | 5,682.25 mi (9,144.70 km) |
| Olympia to Civitella in Val di Chiana | 5,600.88 mi (9,013.74 km) |
| Olympia to Clusone | 5,409.88 mi (8,706.36 km) |
| Olympia to Coccaglio | 5,429.60 mi (8,738.09 km) |
| Olympia to Codigoro | 5,525.29 mi (8,892.09 km) |
| Olympia to Codogno | 5,446.79 mi (8,765.76 km) |
| Olympia to Codroipo | 5,477.44 mi (8,815.09 km) |
| Olympia to Cogoleto | 5,465.65 mi (8,796.11 km) |
| Olympia to Colle di Val d'Elsa | 5,587.42 mi (8,992.09 km) |
| Olympia to Colle Salvetti | 5,559.19 mi (8,946.64 km) |
| Olympia to Collecchio | 5,483.91 mi (8,825.49 km) |
| Olympia to Colleferro | 5,734.67 mi (9,229.05 km) |
