| Porsgrunn to Point Pleasant (New Jersey) | 3,695.21 mi (5,946.87 km) |
| Porsgrunn to Pomona (California) | 5,332.54 mi (8,581.89 km) |
| Porsgrunn to Pompano Beach (Florida) | 4,672.06 mi (7,518.96 km) |
| Porsgrunn to Pompton Lakes (New Jersey) | 3,653.19 mi (5,879.24 km) |
| Porsgrunn to Pompton Plains (New Jersey) | 3,655.74 mi (5,883.34 km) |
| Porsgrunn to Ponca City (Oklahoma) | 4,613.44 mi (7,424.62 km) |
| Porsgrunn to Ponce (Puerto Rico) | 4,672.14 mi (7,519.09 km) |
| Porsgrunn to Pontiac (Illinois) | 4,120.76 mi (6,631.72 km) |
| Porsgrunn to Pontiac (Michigan) | 3,857.26 mi (6,207.65 km) |
| Porsgrunn to Pooler (Georgia) | 4,376.06 mi (7,042.58 km) |
| Porsgrunn to Poplar Bluff (Missouri) | 4,408.78 mi (7,095.25 km) |
| Porsgrunn to Poquoson (Virginia) | 3,931.29 mi (6,326.80 km) |
| Porsgrunn to Port Angeles (Washington) | 4,570.03 mi (7,354.75 km) |
| Porsgrunn to Port Arthur (Texas) | 4,919.43 mi (7,917.06 km) |
| Porsgrunn to Port Charlotte (Florida) | 4,696.88 mi (7,558.90 km) |
