| Sonneberg to Cosenza | 802.60 mi (1,291.67 km) |
| Sonneberg to Cossato | 358.38 mi (576.76 km) |
| Sonneberg to Costa Volpino | 316.11 mi (508.74 km) |
| Sonneberg to Creazzo | 333.12 mi (536.11 km) |
| Sonneberg to Crema | 351.09 mi (565.03 km) |
| Sonneberg to Cremona | 364.25 mi (586.21 km) |
| Sonneberg to Crevalcore | 389.22 mi (626.40 km) |
| Sonneberg to Crispiano | 734.38 mi (1,181.87 km) |
| Sonneberg to Crosia | 793.19 mi (1,276.52 km) |
| Sonneberg to Crotone | 830.79 mi (1,337.02 km) |
| Sonneberg to Cuneo | 445.51 mi (716.98 km) |
| Sonneberg to Cuorgne | 379.40 mi (610.59 km) |
| Sonneberg to Cusano Milanino | 344.08 mi (553.74 km) |
| Sonneberg to Cutro | 831.84 mi (1,338.72 km) |
| Sonneberg to Cutrofiano | 784.67 mi (1,262.80 km) |
