| Owings Mills to Cividale del Friuli | 4,346.76 mi (6,995.43 km) |
| Owings Mills to Civita Castellana | 4,435.84 mi (7,138.79 km) |
| Owings Mills to Civitanova Marche | 4,457.58 mi (7,173.79 km) |
| Owings Mills to Civitavecchia | 4,415.95 mi (7,106.79 km) |
| Owings Mills to Civitella in Val di Chiana | 4,366.29 mi (7,026.87 km) |
| Owings Mills to Clusone | 4,207.62 mi (6,771.51 km) |
| Owings Mills to Coccaglio | 4,219.24 mi (6,790.20 km) |
| Owings Mills to Codigoro | 4,334.75 mi (6,976.11 km) |
| Owings Mills to Codogno | 4,220.72 mi (6,792.59 km) |
| Owings Mills to Codroipo | 4,332.54 mi (6,972.56 km) |
| Owings Mills to Cogoleto | 4,200.05 mi (6,759.33 km) |
| Owings Mills to Colle di Val d'Elsa | 4,341.49 mi (6,986.96 km) |
| Owings Mills to Colle Salvetti | 4,306.34 mi (6,930.38 km) |
| Owings Mills to Collecchio | 4,256.22 mi (6,849.72 km) |
| Owings Mills to Colleferro | 4,482.61 mi (7,214.07 km) |
