| Porsgrunn to Mysliborz | 470.95 mi (757.92 km) |
| Porsgrunn to Myslowice | 718.45 mi (1,156.24 km) |
| Porsgrunn to Myszkow | 701.03 mi (1,128.20 km) |
| Porsgrunn to Naklo nad Notecia | 511.72 mi (823.53 km) |
| Porsgrunn to Namyslow | 638.35 mi (1,027.32 km) |
| Porsgrunn to Nidzica | 570.83 mi (918.67 km) |
| Porsgrunn to Niepolomice | 753.60 mi (1,212.80 km) |
| Porsgrunn to Nisko | 770.51 mi (1,240.01 km) |
| Porsgrunn to Nowa Deba | 766.21 mi (1,233.09 km) |
| Porsgrunn to Nowa Ruda | 647.68 mi (1,042.33 km) |
| Porsgrunn to Nowa Sol | 557.03 mi (896.45 km) |
| Porsgrunn to Nowe Miasto Lubawskie | 544.99 mi (877.08 km) |
| Porsgrunn to Nowogard | 429.21 mi (690.75 km) |
| Porsgrunn to Nowy Dwor Gdanski | 491.23 mi (790.57 km) |
| Porsgrunn to Nowy Dwor Mazowiecki | 627.85 mi (1,010.42 km) |
