| Upminster to Cabestany | 626.02 mi (1,007.48 km) |
| Upminster to Cabries | 609.26 mi (980.51 km) |
| Upminster to Cachan | 211.98 mi (341.14 km) |
| Upminster to Caen | 166.41 mi (267.81 km) |
| Upminster to Cagnes-sur-Mer | 632.22 mi (1,017.45 km) |
| Upminster to Cahors | 494.18 mi (795.30 km) |
| Upminster to Calais | 81.12 mi (130.55 km) |
| Upminster to Caluire-et-Cuire | 449.65 mi (723.64 km) |
| Upminster to Cambrai | 161.27 mi (259.54 km) |
| Upminster to Canet-en-Roussillon | 624.93 mi (1,005.73 km) |
| Upminster to Cannes | 635.98 mi (1,023.52 km) |
| Upminster to Canteleu | 149.45 mi (240.51 km) |
| Upminster to Capbreton | 552.35 mi (888.91 km) |
| Upminster to Carcassonne | 584.87 mi (941.25 km) |
| Upminster to Carmaux | 526.10 mi (846.67 km) |
