| Porsgrunn to Vrsac | 1,081.56 mi (1,740.60 km) |
| Porsgrunn to Zabalj | 1,043.33 mi (1,679.08 km) |
| Porsgrunn to Zabari | 1,128.68 mi (1,816.44 km) |
| Porsgrunn to Zagubica | 1,149.38 mi (1,849.74 km) |
| Porsgrunn to Zajecar | 1,177.45 mi (1,894.92 km) |
| Porsgrunn to Zemun | 1,082.47 mi (1,742.07 km) |
| Porsgrunn to Zitiste | 1,044.31 mi (1,680.66 km) |
| Porsgrunn to Zitorada | 1,213.32 mi (1,952.65 km) |
| Porsgrunn to Zrenjanin | 1,047.88 mi (1,686.41 km) |
| Porsgrunn to Banovce nad Bebravou | 796.67 mi (1,282.12 km) |
| Porsgrunn to Banska Bystrica | 811.69 mi (1,306.29 km) |
| Porsgrunn to Banska Stiavnica | 824.60 mi (1,327.07 km) |
| Porsgrunn to Bardejov | 821.54 mi (1,322.15 km) |
| Porsgrunn to Bernolakovo | 814.54 mi (1,310.88 km) |
| Porsgrunn to Bratislava | 815.27 mi (1,312.06 km) |
