| Oulu to Buxtehude | 966.72 mi (1,555.78 km) |
| Oulu to Cadolzburg | 1,199.35 mi (1,930.17 km) |
| Oulu to Calbe | 1,027.24 mi (1,653.18 km) |
| Oulu to Calw | 1,282.14 mi (2,063.41 km) |
| Oulu to Castrop-Rauxel | 1,131.37 mi (1,820.76 km) |
| Oulu to Celle | 1,011.70 mi (1,628.18 km) |
| Oulu to Cham | 1,187.45 mi (1,911.01 km) |
| Oulu to Chemnitz | 1,078.07 mi (1,734.99 km) |
| Oulu to Clausthal-Zellerfeld | 1,058.27 mi (1,703.12 km) |
| Oulu to Cloppenburg | 1,037.62 mi (1,669.89 km) |
| Oulu to Coburg | 1,145.17 mi (1,842.97 km) |
| Oulu to Coesfeld | 1,110.06 mi (1,786.46 km) |
| Oulu to Cologne | 1,176.24 mi (1,892.97 km) |
| Oulu to Coswig | 1,048.79 mi (1,687.86 km) |
| Oulu to Coswig | 1,017.79 mi (1,637.98 km) |
