| Unna to Cognac | 544.25 mi (875.89 km) |
| Unna to Cogolin | 574.79 mi (925.03 km) |
| Unna to Colmar | 239.04 mi (384.70 km) |
| Unna to Colombes | 300.36 mi (483.38 km) |
| Unna to Colomiers | 621.68 mi (1,000.50 km) |
| Unna to Combs-la-Ville | 301.27 mi (484.85 km) |
| Unna to Comines | 209.77 mi (337.60 km) |
| Unna to Compiegne | 259.20 mi (417.15 km) |
| Unna to Concarneau | 576.15 mi (927.23 km) |
| Unna to Conde-sur-l'Escaut | 193.34 mi (311.14 km) |
| Unna to Conflans-Sainte-Honorine | 302.61 mi (487.00 km) |
| Unna to Corbas | 424.79 mi (683.64 km) |
| Unna to Corbeil-Essonnes | 306.52 mi (493.30 km) |
| Unna to Cormeilles-en-Parisis | 299.99 mi (482.79 km) |
| Unna to Cosne sur Loire | 356.14 mi (573.16 km) |
