| Porvoo to Bingol | 1,618.91 mi (2,605.38 km) |
| Porvoo to Birecik | 1,702.95 mi (2,740.63 km) |
| Porvoo to Bitlis | 1,679.16 mi (2,702.34 km) |
| Porvoo to Bodrum | 1,615.64 mi (2,600.12 km) |
| Porvoo to Bogazliyan | 1,522.21 mi (2,449.76 km) |
| Porvoo to Bolu | 1,381.84 mi (2,223.85 km) |
| Porvoo to Bolvadin | 1,515.92 mi (2,439.64 km) |
| Porvoo to Bor | 1,603.24 mi (2,580.17 km) |
| Porvoo to Borcka | 1,479.72 mi (2,381.37 km) |
| Porvoo to Boyabat | 1,363.68 mi (2,194.62 km) |
| Porvoo to Bozdogan | 1,574.18 mi (2,533.40 km) |
| Porvoo to Bozkir | 1,629.23 mi (2,621.99 km) |
| Porvoo to Bozkurt | 1,569.51 mi (2,525.89 km) |
| Porvoo to Bozuyuk | 1,427.91 mi (2,298.00 km) |
| Porvoo to Bucak | 1,599.35 mi (2,573.91 km) |
