| Irmo to Cabestany | 4,404.88 mi (7,088.97 km) |
| Irmo to Cabries | 4,496.24 mi (7,236.00 km) |
| Irmo to Cachan | 4,221.55 mi (6,793.93 km) |
| Irmo to Caen | 4,097.00 mi (6,593.48 km) |
| Irmo to Cagnes-sur-Mer | 4,570.25 mi (7,355.10 km) |
| Irmo to Cahors | 4,288.71 mi (6,902.00 km) |
| Irmo to Calais | 4,152.42 mi (6,682.68 km) |
| Irmo to Caluire-et-Cuire | 4,407.04 mi (7,092.45 km) |
| Irmo to Cambrai | 4,227.11 mi (6,802.87 km) |
| Irmo to Canet-en-Roussillon | 4,407.20 mi (7,092.70 km) |
| Irmo to Cannes | 4,567.41 mi (7,350.53 km) |
| Irmo to Canteleu | 4,151.16 mi (6,680.64 km) |
| Irmo to Capbreton | 4,175.55 mi (6,719.90 km) |
| Irmo to Carcassonne | 4,362.98 mi (7,021.53 km) |
| Irmo to Carmaux | 4,331.93 mi (6,971.56 km) |
