| Porvoo to Tomuk | 1,683.91 mi (2,710.00 km) |
| Porvoo to Tonya | 1,467.51 mi (2,361.72 km) |
| Porvoo to Toprakkale | 1,676.33 mi (2,697.79 km) |
| Porvoo to Torbali | 1,537.89 mi (2,475.00 km) |
| Porvoo to Tortum | 1,547.37 mi (2,490.25 km) |
| Porvoo to Torul | 1,489.00 mi (2,396.32 km) |
| Porvoo to Tosya | 1,385.48 mi (2,229.71 km) |
| Porvoo to Trabzon | 1,467.04 mi (2,360.97 km) |
| Porvoo to Tufanbeyli | 1,596.62 mi (2,569.52 km) |
| Porvoo to Tunceli | 1,588.50 mi (2,556.45 km) |
| Porvoo to Turgutalp | 1,467.89 mi (2,362.35 km) |
| Porvoo to Turgutlu | 1,515.35 mi (2,438.71 km) |
| Porvoo to Turgutreis | 1,616.78 mi (2,601.96 km) |
| Porvoo to Turhal | 1,452.36 mi (2,337.35 km) |
| Porvoo to Turkeli | 1,326.04 mi (2,134.06 km) |
