| Grudziadz to Cognac | 1,005.34 mi (1,617.94 km) |
| Grudziadz to Cogolin | 900.14 mi (1,448.64 km) |
| Grudziadz to Colmar | 621.27 mi (999.83 km) |
| Grudziadz to Colombes | 778.54 mi (1,252.93 km) |
| Grudziadz to Colomiers | 1,043.88 mi (1,679.97 km) |
| Grudziadz to Combs-la-Ville | 775.48 mi (1,248.01 km) |
| Grudziadz to Comines | 692.42 mi (1,114.35 km) |
| Grudziadz to Compiegne | 739.44 mi (1,190.01 km) |
| Grudziadz to Concarneau | 1,060.05 mi (1,705.99 km) |
| Grudziadz to Conde-sur-l'Escaut | 677.26 mi (1,089.94 km) |
| Grudziadz to Conflans-Sainte-Honorine | 781.99 mi (1,258.49 km) |
| Grudziadz to Corbas | 820.32 mi (1,320.17 km) |
| Grudziadz to Corbeil-Essonnes | 780.54 mi (1,256.16 km) |
| Grudziadz to Cormeilles-en-Parisis | 778.80 mi (1,253.35 km) |
| Grudziadz to Cosne sur Loire | 810.60 mi (1,304.54 km) |
