| Porvoo to Cizre | 1,750.14 mi (2,816.59 km) |
| Porvoo to Cobanlar | 1,515.22 mi (2,438.52 km) |
| Porvoo to Corlu | 1,332.76 mi (2,144.87 km) |
| Porvoo to Corum | 1,427.76 mi (2,297.76 km) |
| Porvoo to Cukurca | 1,782.26 mi (2,868.27 km) |
| Porvoo to Cukurcayir | 1,469.72 mi (2,365.29 km) |
| Porvoo to Cumayeri | 1,367.46 mi (2,200.71 km) |
| Porvoo to Cumra | 1,607.13 mi (2,586.43 km) |
| Porvoo to Cungus | 1,643.32 mi (2,644.67 km) |
| Porvoo to Dargecit | 1,727.95 mi (2,780.87 km) |
| Porvoo to Davutlar | 1,567.37 mi (2,522.43 km) |
| Porvoo to Demirozu | 1,524.87 mi (2,454.04 km) |
| Porvoo to Demre | 1,679.32 mi (2,702.61 km) |
| Porvoo to Denizciler | 1,705.29 mi (2,744.40 km) |
| Porvoo to Denizli | 1,570.56 mi (2,527.57 km) |
