| Porsgrunn to Accokeek (Maryland) | 3,868.85 mi (6,226.32 km) |
| Porsgrunn to Acworth (Georgia) | 4,378.94 mi (7,047.22 km) |
| Porsgrunn to Ada (Oklahoma) | 4,715.98 mi (7,589.64 km) |
| Porsgrunn to Addison (Illinois) | 4,043.35 mi (6,507.15 km) |
| Porsgrunn to Addison (Texas) | 4,827.16 mi (7,768.56 km) |
| Porsgrunn to Adelanto (California) | 5,292.01 mi (8,516.67 km) |
| Porsgrunn to Adelphi (Maryland) | 3,849.86 mi (6,195.74 km) |
| Porsgrunn to Adrian (Michigan) | 3,921.91 mi (6,311.70 km) |
| Porsgrunn to Affton (Missouri) | 4,304.39 mi (6,927.25 km) |
| Porsgrunn to Agoura Hills (California) | 5,350.41 mi (8,610.66 km) |
| Porsgrunn to Aguadilla (Puerto Rico) | 4,666.28 mi (7,509.65 km) |
| Porsgrunn to Aiken (South Carolina) | 4,311.31 mi (6,938.38 km) |
| Porsgrunn to Akron (Ohio) | 3,886.28 mi (6,254.36 km) |
| Porsgrunn to Alabaster (Alabama) | 4,496.75 mi (7,236.82 km) |
| Porsgrunn to Alachua (Florida) | 4,549.62 mi (7,321.90 km) |
