| Karlovo to Port Chester (New York) | 4,749.18 mi (7,643.06 km) |
| Karlovo to Port Hueneme (California) | 6,663.04 mi (10,723.13 km) |
| Karlovo to Port Huron (Michigan) | 5,002.59 mi (8,050.89 km) |
| Karlovo to Port Lavaca (Texas) | 6,267.05 mi (10,085.85 km) |
| Karlovo to Port Neches (Texas) | 6,091.82 mi (9,803.83 km) |
| Karlovo to Port Orange (Florida) | 5,604.97 mi (9,020.33 km) |
| Karlovo to Port Orchard (Washington) | 5,898.41 mi (9,492.58 km) |
| Karlovo to Port Royal (South Carolina) | 5,435.87 mi (8,748.19 km) |
| Karlovo to Port Salerno (Florida) | 5,663.49 mi (9,114.50 km) |
| Karlovo to Port St. John (Florida) | 5,626.66 mi (9,055.23 km) |
| Karlovo to Port St. Lucie (Florida) | 5,665.83 mi (9,118.27 km) |
| Karlovo to Port Washington (New York) | 4,757.22 mi (7,656.01 km) |
| Karlovo to Port Washington (Wisconsin) | 5,180.90 mi (8,337.86 km) |
| Karlovo to Port Wentworth (Georgia) | 5,464.47 mi (8,794.21 km) |
| Karlovo to Portage (Indiana) | 5,244.03 mi (8,439.45 km) |
