| Porsgrunn to Llantwit Major | 741.27 mi (1,192.95 km) |
| Porsgrunn to London | 651.26 mi (1,048.10 km) |
| Porsgrunn to London Colney | 642.60 mi (1,034.16 km) |
| Porsgrunn to Long Eaton | 602.30 mi (969.32 km) |
| Porsgrunn to Longbenton | 509.36 mi (819.73 km) |
| Porsgrunn to Longbridge | 648.00 mi (1,042.86 km) |
| Porsgrunn to Longton | 621.32 mi (999.92 km) |
| Porsgrunn to Loughborough | 607.20 mi (977.19 km) |
| Porsgrunn to Loughton | 638.34 mi (1,027.31 km) |
| Porsgrunn to Louth | 543.87 mi (875.28 km) |
| Porsgrunn to Lowestoft | 552.15 mi (888.60 km) |
| Porsgrunn to Lowton | 609.75 mi (981.29 km) |
| Porsgrunn to Ludlow | 669.60 mi (1,077.62 km) |
| Porsgrunn to Luton | 636.60 mi (1,024.51 km) |
| Porsgrunn to Lydney | 698.48 mi (1,124.10 km) |
