| Cities | Distance |
|---|---|
| Porsgrunn to Nowy Sacz | 788.80 mi (1,269.45 km) |
| Porsgrunn to Nowy Targ | 783.66 mi (1,261.18 km) |
| Porsgrunn to Nowy Tomysl | 531.58 mi (855.50 km) |
| Porsgrunn to Nysa | 669.05 mi (1,076.72 km) |
| Porsgrunn to Oborniki | 524.16 mi (843.56 km) |
| Porsgrunn to Oborniki Slaskie | 609.21 mi (980.42 km) |
| Porsgrunn to Olawa | 639.37 mi (1,028.97 km) |
| Porsgrunn to Olecko | 598.63 mi (963.41 km) |
| Porsgrunn to Olesnica | 624.28 mi (1,004.68 km) |
| Porsgrunn to Olesno | 664.57 mi (1,069.52 km) |
| Porsgrunn to Olkusz | 724.58 mi (1,166.09 km) |
| Porsgrunn to Olsztyn | 551.23 mi (887.12 km) |
| Porsgrunn to Opalenica | 537.30 mi (864.69 km) |
| Porsgrunn to Opoczno | 676.15 mi (1,088.16 km) |
| Porsgrunn to Opole | 667.88 mi (1,074.86 km) |