| Killingworth to Collegno | 796.63 mi (1,282.06 km) |
| Killingworth to Cologno al Serio | 818.18 mi (1,316.73 km) |
| Killingworth to Cologno Monzese | 810.40 mi (1,304.21 km) |
| Killingworth to Colorno | 873.94 mi (1,406.47 km) |
| Killingworth to Comacchio | 936.82 mi (1,507.67 km) |
| Killingworth to Comiso | 1,462.55 mi (2,353.75 km) |
| Killingworth to Como | 788.98 mi (1,269.74 km) |
| Killingworth to Concordia Sagittaria | 897.97 mi (1,445.15 km) |
| Killingworth to Concorezzo | 808.30 mi (1,300.84 km) |
| Killingworth to Conegliano | 874.77 mi (1,407.80 km) |
| Killingworth to Conselice | 937.33 mi (1,508.49 km) |
| Killingworth to Conselve | 897.90 mi (1,445.03 km) |
| Killingworth to Conversano | 1,291.66 mi (2,078.72 km) |
| Killingworth to Copertino | 1,359.32 mi (2,187.62 km) |
| Killingworth to Copparo | 915.62 mi (1,473.54 km) |
