| Porsgrunn to Bridgeton (Missouri) | 4,295.18 mi (6,912.42 km) |
| Porsgrunn to Bridgetown (Ohio) | 4,091.77 mi (6,585.08 km) |
| Porsgrunn to Bridgeview (Illinois) | 4,047.75 mi (6,514.23 km) |
| Porsgrunn to Brigham City (Utah) | 4,733.39 mi (7,617.66 km) |
| Porsgrunn to Brighton (Colorado) | 4,640.36 mi (7,467.94 km) |
| Porsgrunn to Bristol (Connecticut) | 3,572.36 mi (5,749.15 km) |
| Porsgrunn to Bristol (Tennessee) | 4,157.86 mi (6,691.43 km) |
| Porsgrunn to Bristol (Virginia) | 4,152.66 mi (6,683.07 km) |
| Porsgrunn to Broadlands (Virginia) | 3,867.39 mi (6,223.96 km) |
| Porsgrunn to Broadview Heights (Ohio) | 3,878.26 mi (6,241.46 km) |
| Porsgrunn to Brock Hall (Maryland) | 3,850.22 mi (6,196.32 km) |
| Porsgrunn to Brockton (Massachusetts) | 3,487.02 mi (5,611.81 km) |
| Porsgrunn to Broken Arrow (Oklahoma) | 4,615.00 mi (7,427.13 km) |
| Porsgrunn to Bronx (New York) | 3,647.24 mi (5,869.66 km) |
| Porsgrunn to Brook Park (Ohio) | 3,878.31 mi (6,241.54 km) |
