| Cities | Distance |
|---|---|
| Porsgrunn to Imatra | 668.18 mi (1,075.34 km) |
| Porsgrunn to Jakobstad | 530.93 mi (854.45 km) |
| Porsgrunn to Jamsa | 558.22 mi (898.36 km) |
| Porsgrunn to Janakkala | 529.40 mi (851.99 km) |
| Porsgrunn to Jarvenpaa | 541.55 mi (871.55 km) |
| Porsgrunn to Joensuu | 712.46 mi (1,146.60 km) |
| Porsgrunn to Joutseno | 659.08 mi (1,060.69 km) |
| Porsgrunn to Jyvaskyla | 581.95 mi (936.56 km) |
| Porsgrunn to Jyvaskylan Maalaiskunta | 582.78 mi (937.90 km) |
| Porsgrunn to Kaarina | 448.55 mi (721.87 km) |
| Porsgrunn to Kajaani | 684.62 mi (1,101.78 km) |
| Porsgrunn to Kalajoki | 584.67 mi (940.94 km) |
| Porsgrunn to Kangasala | 516.40 mi (831.06 km) |
| Porsgrunn to Kankaanpaa | 469.43 mi (755.48 km) |
| Porsgrunn to Karhula | 604.35 mi (972.61 km) |