| Siegburg to Ciampino | 672.70 mi (1,082.61 km) |
| Siegburg to Cicciano | 764.61 mi (1,230.51 km) |
| Siegburg to Cingoli | 585.96 mi (943.01 km) |
| Siegburg to Cinisello Balsamo | 374.46 mi (602.63 km) |
| Siegburg to Cinisi | 919.33 mi (1,479.52 km) |
| Siegburg to Cirie | 385.01 mi (619.62 km) |
| Siegburg to Ciro Marina | 924.57 mi (1,487.95 km) |
| Siegburg to Cislago | 365.02 mi (587.45 km) |
| Siegburg to Cisterna di Latina | 690.39 mi (1,111.08 km) |
| Siegburg to Cisternino | 850.90 mi (1,369.39 km) |
| Siegburg to Citta di Castello | 559.45 mi (900.35 km) |
| Siegburg to Citta Sant'Angelo | 657.40 mi (1,057.98 km) |
| Siegburg to Cittadella | 413.46 mi (665.40 km) |
| Siegburg to Cittanova | 963.30 mi (1,550.29 km) |
| Siegburg to Cividale del Friuli | 432.13 mi (695.44 km) |
