| Upminster to Cognac | 405.74 mi (652.98 km) |
| Upminster to Cogolin | 643.90 mi (1,036.26 km) |
| Upminster to Colmar | 397.10 mi (639.06 km) |
| Upminster to Colombes | 202.20 mi (325.41 km) |
| Upminster to Colomiers | 551.04 mi (886.81 km) |
| Upminster to Combs-la-Ville | 224.07 mi (360.60 km) |
| Upminster to Comines | 131.45 mi (211.55 km) |
| Upminster to Compiegne | 186.15 mi (299.59 km) |
| Upminster to Concarneau | 315.12 mi (507.13 km) |
| Upminster to Conde-sur-l'Escaut | 164.07 mi (264.05 km) |
| Upminster to Conflans-Sainte-Honorine | 194.54 mi (313.08 km) |
| Upminster to Corbas | 458.70 mi (738.21 km) |
| Upminster to Corbeil-Essonnes | 226.02 mi (363.74 km) |
| Upminster to Cormeilles-en-Parisis | 198.07 mi (318.77 km) |
| Upminster to Cosne sur Loire | 310.50 mi (499.69 km) |
