| Porsgrunn to Bagnolet | 766.35 mi (1,233.32 km) |
| Porsgrunn to Bagnols-sur-Ceze | 1,055.21 mi (1,698.19 km) |
| Porsgrunn to Bailleul | 640.91 mi (1,031.45 km) |
| Porsgrunn to Balma | 1,126.36 mi (1,812.70 km) |
| Porsgrunn to Bar-le-Duc | 737.76 mi (1,187.31 km) |
| Porsgrunn to Barentin | 748.10 mi (1,203.95 km) |
| Porsgrunn to Basse-Goulaine | 940.75 mi (1,514.00 km) |
| Porsgrunn to Bastia | 1,134.21 mi (1,825.33 km) |
| Porsgrunn to Bayeux | 797.41 mi (1,283.31 km) |
| Porsgrunn to Bayonne | 1,179.21 mi (1,897.76 km) |
| Porsgrunn to Beaucaire | 1,079.20 mi (1,736.80 km) |
| Porsgrunn to Beauchamp | 760.54 mi (1,223.97 km) |
| Porsgrunn to Beaumont | 963.49 mi (1,550.58 km) |
| Porsgrunn to Beaumont-sur-Oise | 750.69 mi (1,208.12 km) |
| Porsgrunn to Beaune | 858.93 mi (1,382.31 km) |
