| Porsgrunn to The Villages (Florida) | 4,582.91 mi (7,375.49 km) |
| Porsgrunn to The Woodlands (Texas) | 4,950.49 mi (7,967.04 km) |
| Porsgrunn to Thibodaux (Louisiana) | 4,823.66 mi (7,762.93 km) |
| Porsgrunn to Thomasville (Georgia) | 4,539.09 mi (7,304.95 km) |
| Porsgrunn to Thomasville (North Carolina) | 4,124.91 mi (6,638.39 km) |
| Porsgrunn to Thonotosassa (Florida) | 4,642.29 mi (7,471.04 km) |
| Porsgrunn to Thornton (Colorado) | 4,647.41 mi (7,479.28 km) |
| Porsgrunn to Thousand Oaks (California) | 5,350.57 mi (8,610.91 km) |
| Porsgrunn to Three Lakes (Florida) | 4,715.91 mi (7,589.52 km) |
| Porsgrunn to Tiffin (Ohio) | 3,937.33 mi (6,336.52 km) |
| Porsgrunn to Tifton (Georgia) | 4,488.27 mi (7,223.17 km) |
| Porsgrunn to Tigard (Oregon) | 4,726.75 mi (7,606.97 km) |
| Porsgrunn to Tillmans Corner (Alabama) | 4,693.61 mi (7,553.63 km) |
| Porsgrunn to Timberlake (Virginia) | 4,017.84 mi (6,466.08 km) |
| Porsgrunn to Timberlane (Louisiana) | 4,793.48 mi (7,714.35 km) |
