| Porsgrunn to Harrison (Wisconsin) | 3,927.19 mi (6,320.21 km) |
| Porsgrunn to Harrisonburg (Virginia) | 3,943.99 mi (6,347.24 km) |
| Porsgrunn to Hartford (Connecticut) | 3,559.28 mi (5,728.11 km) |
| Porsgrunn to Hartford (Wisconsin) | 3,977.68 mi (6,401.46 km) |
| Porsgrunn to Hartselle (Alabama) | 4,431.00 mi (7,131.01 km) |
| Porsgrunn to Hartsville (Tennessee) | 4,295.11 mi (6,912.31 km) |
| Porsgrunn to Harvey (Illinois) | 4,050.35 mi (6,518.41 km) |
| Porsgrunn to Harvey (Louisiana) | 4,794.10 mi (7,715.36 km) |
| Porsgrunn to Hasbrouck Heights (New Jersey) | 3,653.57 mi (5,879.86 km) |
| Porsgrunn to Haslett (Michigan) | 3,886.59 mi (6,254.87 km) |
| Porsgrunn to Hastings (Minnesota) | 4,031.86 mi (6,488.65 km) |
| Porsgrunn to Hastings (Nebraska) | 4,426.41 mi (7,123.62 km) |
| Porsgrunn to Hattiesburg (Mississippi) | 4,687.53 mi (7,543.85 km) |
| Porsgrunn to Hauppauge (New York) | 3,626.81 mi (5,836.78 km) |
| Porsgrunn to Havelock (North Carolina) | 4,071.99 mi (6,553.23 km) |
