| Porsgrunn to Lisburn | 672.56 mi (1,082.38 km) |
| Porsgrunn to Liskeard | 819.64 mi (1,319.08 km) |
| Porsgrunn to Litherland | 622.34 mi (1,001.55 km) |
| Porsgrunn to Little Bookham | 670.55 mi (1,079.14 km) |
| Porsgrunn to Little Hulton | 602.47 mi (969.58 km) |
| Porsgrunn to Little Lever | 599.43 mi (964.70 km) |
| Porsgrunn to Littleborough | 587.60 mi (945.65 km) |
| Porsgrunn to Littlehampton | 701.68 mi (1,129.25 km) |
| Porsgrunn to Littleover | 608.21 mi (978.82 km) |
| Porsgrunn to Littleport | 586.39 mi (943.71 km) |
| Porsgrunn to Liverpool | 625.25 mi (1,006.25 km) |
| Porsgrunn to Liversedge | 572.73 mi (921.72 km) |
| Porsgrunn to Livingston | 538.19 mi (866.14 km) |
| Porsgrunn to Llanelli | 745.59 mi (1,199.91 km) |
| Porsgrunn to Llantrisant | 731.27 mi (1,176.87 km) |
