| Porsgrunn to Piazza Armerina | 1,515.89 mi (2,439.58 km) |
| Porsgrunn to Piazzola sul Brenta | 942.34 mi (1,516.55 km) |
| Porsgrunn to Pietrasanta | 1,048.39 mi (1,687.23 km) |
| Porsgrunn to Pieve di Soligo | 919.93 mi (1,480.48 km) |
| Porsgrunn to Pinerolo | 988.11 mi (1,590.21 km) |
| Porsgrunn to Pioltello | 940.88 mi (1,514.20 km) |
| Porsgrunn to Piombino | 1,118.52 mi (1,800.09 km) |
| Porsgrunn to Piombino Dese | 938.21 mi (1,509.91 km) |
| Porsgrunn to Piossasco | 980.46 mi (1,577.89 km) |
| Porsgrunn to Piove di Sacco | 959.65 mi (1,544.40 km) |
| Porsgrunn to Pisa | 1,064.36 mi (1,712.92 km) |
| Porsgrunn to Pisticci | 1,328.15 mi (2,137.46 km) |
| Porsgrunn to Pistoia | 1,050.23 mi (1,690.19 km) |
| Porsgrunn to Pizzo | 1,436.87 mi (2,312.42 km) |
| Porsgrunn to Podenzano | 978.75 mi (1,575.14 km) |
