| Porsgrunn to Arandelovac | 1,120.49 mi (1,803.26 km) |
| Porsgrunn to Arilje | 1,148.72 mi (1,848.69 km) |
| Porsgrunn to Babusnica | 1,233.40 mi (1,984.96 km) |
| Porsgrunn to Bac | 1,028.40 mi (1,655.05 km) |
| Porsgrunn to Backa Palanka | 1,039.78 mi (1,673.36 km) |
| Porsgrunn to Backa Topola | 1,006.85 mi (1,620.36 km) |
| Porsgrunn to Backi Petrovac | 1,035.72 mi (1,666.82 km) |
| Porsgrunn to Bajina Basta | 1,125.82 mi (1,811.83 km) |
| Porsgrunn to Batajnica | 1,077.06 mi (1,733.35 km) |
| Porsgrunn to Batocina | 1,139.64 mi (1,834.07 km) |
| Porsgrunn to Becej | 1,026.62 mi (1,652.18 km) |
| Porsgrunn to Bela Crkva | 1,097.68 mi (1,766.54 km) |
| Porsgrunn to Bela Palanka | 1,221.83 mi (1,966.35 km) |
| Porsgrunn to Belgrade | 1,085.45 mi (1,746.86 km) |
| Porsgrunn to Beocin | 1,048.50 mi (1,687.39 km) |
