| Porsgrunn to Beverly Hills (Florida) | 4,597.86 mi (7,399.54 km) |
| Porsgrunn to Beverly Hills (Michigan) | 3,862.73 mi (6,216.46 km) |
| Porsgrunn to Bexley (Ohio) | 3,992.59 mi (6,425.45 km) |
| Porsgrunn to Biddeford (Maine) | 3,396.08 mi (5,465.47 km) |
| Porsgrunn to Big Bear City (California) | 5,296.91 mi (8,524.56 km) |
| Porsgrunn to Big Lake (Minnesota) | 4,023.30 mi (6,474.88 km) |
| Porsgrunn to Big Spring (Texas) | 5,008.57 mi (8,060.51 km) |
| Porsgrunn to Billings (Montana) | 4,389.81 mi (7,064.72 km) |
| Porsgrunn to Biloxi (Mississippi) | 4,725.72 mi (7,605.31 km) |
| Porsgrunn to Binghamton (New York) | 3,648.77 mi (5,872.13 km) |
| Porsgrunn to Birmingham (Alabama) | 4,478.33 mi (7,207.18 km) |
| Porsgrunn to Birmingham (Michigan) | 3,860.69 mi (6,213.18 km) |
| Porsgrunn to Bismarck (North Dakota) | 4,132.58 mi (6,650.75 km) |
| Porsgrunn to Bithlo (Florida) | 4,572.37 mi (7,358.52 km) |
| Porsgrunn to Bixby (Oklahoma) | 4,623.31 mi (7,440.50 km) |
