| Oulu to Cologno al Serio | 1,469.26 mi (2,364.55 km) |
| Oulu to Cologno Monzese | 1,479.36 mi (2,380.81 km) |
| Oulu to Colorno | 1,501.82 mi (2,416.94 km) |
| Oulu to Comacchio | 1,492.55 mi (2,402.03 km) |
| Oulu to Comiso | 1,989.43 mi (3,201.68 km) |
| Oulu to Como | 1,463.99 mi (2,356.07 km) |
| Oulu to Concordia Sagittaria | 1,412.90 mi (2,273.84 km) |
| Oulu to Concorezzo | 1,474.47 mi (2,372.93 km) |
| Oulu to Conegliano | 1,412.09 mi (2,272.54 km) |
| Oulu to Conselice | 1,509.33 mi (2,429.04 km) |
| Oulu to Conselve | 1,461.24 mi (2,351.63 km) |
| Oulu to Conversano | 1,694.11 mi (2,726.40 km) |
| Oulu to Copertino | 1,735.25 mi (2,792.61 km) |
| Oulu to Copparo | 1,483.83 mi (2,388.00 km) |
| Oulu to Corato | 1,687.36 mi (2,715.55 km) |
