| Porsgrunn to Ashwaubenon (Wisconsin) | 3,905.34 mi (6,285.03 km) |
| Porsgrunn to Aspen Hill (Maryland) | 3,848.84 mi (6,194.11 km) |
| Porsgrunn to Astoria (Oregon) | 4,698.48 mi (7,561.47 km) |
| Porsgrunn to Atascadero (California) | 5,310.75 mi (8,546.83 km) |
| Porsgrunn to Atascocita (Texas) | 4,952.11 mi (7,969.66 km) |
| Porsgrunn to Atchison (Kansas) | 4,391.80 mi (7,067.91 km) |
| Porsgrunn to Athens (Alabama) | 4,411.71 mi (7,099.96 km) |
| Porsgrunn to Athens (Georgia) | 4,342.07 mi (6,987.89 km) |
| Porsgrunn to Athens (Ohio) | 4,000.72 mi (6,438.54 km) |
| Porsgrunn to Athens (Tennessee) | 4,297.61 mi (6,916.33 km) |
| Porsgrunn to Athens (Texas) | 4,840.87 mi (7,790.63 km) |
| Porsgrunn to Atlanta (Georgia) | 4,387.40 mi (7,060.83 km) |
| Porsgrunn to Atlantic Beach (Florida) | 4,481.56 mi (7,212.38 km) |
| Porsgrunn to Atlantic City (New Jersey) | 3,745.40 mi (6,027.64 km) |
| Porsgrunn to Attleboro (Massachusetts) | 3,504.01 mi (5,639.16 km) |
