| Knottingley to Cortona | 938.54 mi (1,510.43 km) |
| Knottingley to Cosenza | 1,290.16 mi (2,076.31 km) |
| Knottingley to Cossato | 701.38 mi (1,128.76 km) |
| Knottingley to Costa Volpino | 741.55 mi (1,193.41 km) |
| Knottingley to Creazzo | 800.00 mi (1,287.48 km) |
| Knottingley to Crema | 754.73 mi (1,214.62 km) |
| Knottingley to Cremona | 777.81 mi (1,251.76 km) |
| Knottingley to Crevalcore | 833.64 mi (1,341.62 km) |
| Knottingley to Crispiano | 1,247.29 mi (2,007.31 km) |
| Knottingley to Crosia | 1,290.49 mi (2,076.84 km) |
| Knottingley to Crotone | 1,328.60 mi (2,138.17 km) |
| Knottingley to Cuneo | 756.11 mi (1,216.84 km) |
| Knottingley to Cuorgne | 698.29 mi (1,123.79 km) |
| Knottingley to Cusano Milanino | 730.23 mi (1,175.19 km) |
| Knottingley to Cutro | 1,327.41 mi (2,136.26 km) |
