| Oulu to Chojnow | 1,008.93 mi (1,623.72 km) |
| Oulu to Chorzow | 1,043.52 mi (1,679.38 km) |
| Oulu to Choszczno | 890.47 mi (1,433.08 km) |
| Oulu to Chrzanow | 1,051.33 mi (1,691.95 km) |
| Oulu to Ciechanow | 856.24 mi (1,377.98 km) |
| Oulu to Ciechocinek | 870.24 mi (1,400.52 km) |
| Oulu to Cieszyn | 1,083.47 mi (1,743.67 km) |
| Oulu to Czarna Bialostocka | 812.96 mi (1,308.33 km) |
| Oulu to Czarnkow | 893.10 mi (1,437.30 km) |
| Oulu to Czechowice-Dziedzice | 1,069.36 mi (1,720.96 km) |
| Oulu to Czeladz | 1,040.18 mi (1,674.01 km) |
| Oulu to Czersk Pomorski | 817.59 mi (1,315.78 km) |
| Oulu to Czestochowa | 1,008.22 mi (1,622.57 km) |
| Oulu to Czluchow | 832.84 mi (1,340.32 km) |
| Oulu to Dabrowa Gornicza | 1,040.17 mi (1,673.99 km) |
