| Porsgrunn to Iasi | 1,102.62 mi (1,774.49 km) |
| Porsgrunn to Iernut | 1,059.79 mi (1,705.56 km) |
| Porsgrunn to Ineu | 1,009.25 mi (1,624.23 km) |
| Porsgrunn to Jibou | 988.10 mi (1,590.20 km) |
| Porsgrunn to Jilava | 1,231.29 mi (1,981.56 km) |
| Porsgrunn to Jimbolia | 1,027.89 mi (1,654.23 km) |
| Porsgrunn to Liesti | 1,190.28 mi (1,915.58 km) |
| Porsgrunn to Lipova | 1,027.26 mi (1,653.22 km) |
| Porsgrunn to Liteni | 1,054.13 mi (1,696.46 km) |
| Porsgrunn to Ludus | 1,055.16 mi (1,698.11 km) |
| Porsgrunn to Lugoj | 1,056.21 mi (1,699.80 km) |
| Porsgrunn to Lupeni | 1,104.76 mi (1,777.93 km) |
| Porsgrunn to Magurele | 1,229.15 mi (1,978.12 km) |
| Porsgrunn to Mangalia | 1,323.26 mi (2,129.58 km) |
| Porsgrunn to Marasesti | 1,167.04 mi (1,878.17 km) |
