| Porvoo to Bahcesaray | 1,709.81 mi (2,751.67 km) |
| Porvoo to Balikesir | 1,437.64 mi (2,313.65 km) |
| Porvoo to Balya | 1,428.78 mi (2,299.40 km) |
| Porvoo to Banaz | 1,507.11 mi (2,425.46 km) |
| Porvoo to Bandirma | 1,388.44 mi (2,234.48 km) |
| Porvoo to Bartin | 1,326.64 mi (2,135.02 km) |
| Porvoo to Baskale | 1,738.48 mi (2,797.82 km) |
| Porvoo to Baskil | 1,612.51 mi (2,595.08 km) |
| Porvoo to Basmakci | 1,566.87 mi (2,521.63 km) |
| Porvoo to Batman | 1,695.21 mi (2,728.17 km) |
| Porvoo to Battalgazi | 1,615.36 mi (2,599.67 km) |
| Porvoo to Bayat | 1,413.00 mi (2,274.00 km) |
| Porvoo to Bayburt | 1,524.40 mi (2,453.28 km) |
| Porvoo to Bayindir | 1,534.60 mi (2,469.69 km) |
| Porvoo to Baykan | 1,688.63 mi (2,717.59 km) |
