| Greenock to Cabestany | 978.91 mi (1,575.40 km) |
| Greenock to Cabries | 973.66 mi (1,566.95 km) |
| Greenock to Cachan | 577.46 mi (929.33 km) |
| Greenock to Caen | 502.61 mi (808.88 km) |
| Greenock to Cagnes-sur-Mer | 998.27 mi (1,606.55 km) |
| Greenock to Cahors | 839.97 mi (1,351.81 km) |
| Greenock to Calais | 439.67 mi (707.58 km) |
| Greenock to Caluire-et-Cuire | 815.55 mi (1,312.50 km) |
| Greenock to Cambrai | 518.42 mi (834.32 km) |
| Greenock to Canet-en-Roussillon | 978.27 mi (1,574.38 km) |
| Greenock to Cannes | 1,002.08 mi (1,612.68 km) |
| Greenock to Canteleu | 510.10 mi (820.92 km) |
| Greenock to Capbreton | 863.04 mi (1,388.93 km) |
| Greenock to Carcassonne | 934.99 mi (1,504.72 km) |
| Greenock to Carmaux | 876.81 mi (1,411.09 km) |
