| Olgiate Olona to Coudekerque-Branche | 476.81 mi (767.36 km) |
| Olgiate Olona to Coueron | 516.39 mi (831.05 km) |
| Olgiate Olona to Coulommiers | 349.69 mi (562.78 km) |
| Olgiate Olona to Courbevoic | 383.85 mi (617.74 km) |
| Olgiate Olona to Courcouronnes | 366.87 mi (590.42 km) |
| Olgiate Olona to Cournon-d'Auvergne | 274.49 mi (441.75 km) |
| Olgiate Olona to Courrieres | 431.36 mi (694.20 km) |
| Olgiate Olona to Coutras | 439.38 mi (707.11 km) |
| Olgiate Olona to Couzeix | 368.78 mi (593.49 km) |
| Olgiate Olona to Cran-Gevrier | 135.25 mi (217.66 km) |
| Olgiate Olona to Craponne | 200.91 mi (323.33 km) |
| Olgiate Olona to Creil | 389.84 mi (627.39 km) |
| Olgiate Olona to Crepy-en-Valois | 374.54 mi (602.76 km) |
| Olgiate Olona to Crest | 198.14 mi (318.88 km) |
| Olgiate Olona to Creteil | 371.83 mi (598.40 km) |
