| Roman to Cognac | 1,297.14 mi (2,087.55 km) |
| Roman to Cogolin | 1,023.77 mi (1,647.61 km) |
| Roman to Colmar | 914.58 mi (1,471.87 km) |
| Roman to Colombes | 1,145.67 mi (1,843.78 km) |
| Roman to Colomiers | 1,259.49 mi (2,026.95 km) |
| Roman to Combs-la-Ville | 1,132.53 mi (1,822.63 km) |
| Roman to Comines | 1,114.13 mi (1,793.02 km) |
| Roman to Compiegne | 1,119.05 mi (1,800.93 km) |
| Roman to Concarneau | 1,434.52 mi (2,308.64 km) |
| Roman to Conde-sur-l'Escaut | 1,087.08 mi (1,749.49 km) |
| Roman to Conflans-Sainte-Honorine | 1,152.43 mi (1,854.66 km) |
| Roman to Corbas | 1,051.66 mi (1,692.48 km) |
| Roman to Corbeil-Essonnes | 1,136.31 mi (1,828.71 km) |
| Roman to Cormeilles-en-Parisis | 1,147.83 mi (1,847.26 km) |
| Roman to Cosne sur Loire | 1,123.55 mi (1,808.19 km) |
