| Karlovo to Romeoville (Illinois) | 5,275.03 mi (8,489.35 km) |
| Karlovo to Romulus (Michigan) | 5,072.79 mi (8,163.87 km) |
| Karlovo to Ronkonkoma (New York) | 4,735.67 mi (7,621.32 km) |
| Karlovo to Roosevelt (New York) | 4,759.80 mi (7,660.15 km) |
| Karlovo to Rosamond (California) | 6,594.62 mi (10,613.01 km) |
| Karlovo to Rosaryville (Maryland) | 4,976.76 mi (8,009.32 km) |
| Karlovo to Roscoe (Illinois) | 5,268.02 mi (8,478.06 km) |
| Karlovo to Rose Hill (Virginia) | 4,987.35 mi (8,026.36 km) |
| Karlovo to Roseburg (Oregon) | 6,184.42 mi (9,952.86 km) |
| Karlovo to Rosedale (California) | 6,586.75 mi (10,600.35 km) |
| Karlovo to Rosedale (Maryland) | 4,938.64 mi (7,947.97 km) |
| Karlovo to Roselle (Illinois) | 5,257.27 mi (8,460.75 km) |
| Karlovo to Roselle (New Jersey) | 4,788.55 mi (7,706.42 km) |
| Karlovo to Roselle Park (New Jersey) | 4,788.27 mi (7,705.98 km) |
| Karlovo to Rosemead (California) | 6,640.53 mi (10,686.91 km) |
