| Opoczno to Cabestany | 1,009.87 mi (1,625.22 km) |
| Opoczno to Cabries | 884.04 mi (1,422.72 km) |
| Opoczno to Cachan | 813.59 mi (1,309.35 km) |
| Opoczno to Caen | 921.45 mi (1,482.93 km) |
| Opoczno to Cagnes-sur-Mer | 810.11 mi (1,303.75 km) |
| Opoczno to Cahors | 991.40 mi (1,595.50 km) |
| Opoczno to Calais | 797.02 mi (1,282.69 km) |
| Opoczno to Caluire-et-Cuire | 801.93 mi (1,290.59 km) |
| Opoczno to Cambrai | 747.86 mi (1,203.57 km) |
| Opoczno to Canet-en-Roussillon | 1,006.29 mi (1,619.47 km) |
| Opoczno to Cannes | 820.46 mi (1,320.41 km) |
| Opoczno to Canteleu | 855.41 mi (1,376.65 km) |
| Opoczno to Capbreton | 1,139.85 mi (1,834.41 km) |
| Opoczno to Carcassonne | 1,008.19 mi (1,622.52 km) |
| Opoczno to Carmaux | 979.24 mi (1,575.94 km) |
