| Porsgrunn to Pottsville (Pennsylvania) | 3,734.36 mi (6,009.86 km) |
| Porsgrunn to Poughkeepsie (New York) | 3,604.37 mi (5,800.68 km) |
| Porsgrunn to Poulsbo (Washington) | 4,577.92 mi (7,367.44 km) |
| Porsgrunn to Poway (California) | 5,381.81 mi (8,661.19 km) |
| Porsgrunn to Powder Springs (Georgia) | 4,390.15 mi (7,065.27 km) |
| Porsgrunn to Powell (Ohio) | 3,986.15 mi (6,415.09 km) |
| Porsgrunn to Powell (Tennessee) | 4,246.34 mi (6,833.83 km) |
| Porsgrunn to Prairie Ridge (Washington) | 4,605.79 mi (7,412.30 km) |
| Porsgrunn to Prairie Village (Kansas) | 4,410.04 mi (7,097.27 km) |
| Porsgrunn to Prairieville (Louisiana) | 4,797.95 mi (7,721.56 km) |
| Porsgrunn to Prattville (Alabama) | 4,528.31 mi (7,287.61 km) |
| Porsgrunn to Preakness (New Jersey) | 3,654.53 mi (5,881.41 km) |
| Porsgrunn to Prescott (Arizona) | 5,168.08 mi (8,317.22 km) |
| Porsgrunn to Prescott Valley (Arizona) | 5,163.97 mi (8,310.61 km) |
| Porsgrunn to Prichard (Alabama) | 4,679.84 mi (7,531.48 km) |
