| Olecko to Carpentras | 1,043.67 mi (1,679.63 km) |
| Olecko to Carquefou | 1,141.98 mi (1,837.84 km) |
| Olecko to Carqueiranne | 1,060.58 mi (1,706.83 km) |
| Olecko to Carrieres-sous-Poissy | 943.59 mi (1,518.56 km) |
| Olecko to Carrieres-sur-Seine | 934.99 mi (1,504.72 km) |
| Olecko to Carros | 988.88 mi (1,591.45 km) |
| Olecko to Carvin | 858.65 mi (1,381.87 km) |
| Olecko to Castanet-Tolosan | 1,193.40 mi (1,920.59 km) |
| Olecko to Castelginest | 1,187.09 mi (1,910.43 km) |
| Olecko to Castelnau-le-Lez | 1,103.71 mi (1,776.24 km) |
| Olecko to Castelnaudary | 1,187.01 mi (1,910.30 km) |
| Olecko to Castelsarrasin | 1,182.23 mi (1,902.61 km) |
| Olecko to Castres | 1,162.70 mi (1,871.19 km) |
| Olecko to Caudebec-les-Elbeuf | 972.88 mi (1,565.70 km) |
| Olecko to Caudry | 851.24 mi (1,369.93 km) |
