| Porsgrunn to Motherwell | 557.41 mi (897.06 km) |
| Porsgrunn to Mountain Ash | 723.95 mi (1,165.09 km) |
| Porsgrunn to Musselburgh | 520.69 mi (837.97 km) |
| Porsgrunn to Nailsea | 720.86 mi (1,160.11 km) |
| Porsgrunn to Nairn | 502.57 mi (808.81 km) |
| Porsgrunn to Nantwich | 628.33 mi (1,011.19 km) |
| Porsgrunn to Neath | 736.97 mi (1,186.04 km) |
| Porsgrunn to Nelson | 581.94 mi (936.54 km) |
| Porsgrunn to Neston | 633.40 mi (1,019.36 km) |
| Porsgrunn to Netherton | 645.76 mi (1,039.24 km) |
| Porsgrunn to New Brighton | 625.77 mi (1,007.08 km) |
| Porsgrunn to New Mills | 598.62 mi (963.39 km) |
| Porsgrunn to New Milton | 730.48 mi (1,175.59 km) |
| Porsgrunn to New Silksworth | 509.60 mi (820.13 km) |
| Porsgrunn to Newburn | 515.46 mi (829.55 km) |
