| Karlovo to Roy (Utah) | 6,052.22 mi (9,740.11 km) |
| Karlovo to Royal Kunia (Hawaii) | 8,007.74 mi (12,887.22 km) |
| Karlovo to Royal Oak (Michigan) | 5,051.45 mi (8,129.52 km) |
| Karlovo to Royal Palm Beach (Florida) | 5,686.32 mi (9,151.24 km) |
| Karlovo to Royse City (Texas) | 6,021.35 mi (9,690.43 km) |
| Karlovo to Ruskin (Florida) | 5,733.88 mi (9,227.78 km) |
| Karlovo to Russellville (Alabama) | 5,616.57 mi (9,039.00 km) |
| Karlovo to Russellville (Arkansas) | 5,782.80 mi (9,306.51 km) |
| Karlovo to Ruston (Louisiana) | 5,907.32 mi (9,506.91 km) |
| Karlovo to Rutherford (New Jersey) | 4,774.99 mi (7,684.60 km) |
| Karlovo to Rutland (Vermont) | 4,610.43 mi (7,419.77 km) |
| Karlovo to Sabana Grande (Puerto Rico) | 5,467.05 mi (8,798.37 km) |
| Karlovo to Sachse (Texas) | 6,031.10 mi (9,706.12 km) |
| Karlovo to Saco (Maine) | 4,512.62 mi (7,262.36 km) |
| Karlovo to Sacramento (California) | 6,440.23 mi (10,364.55 km) |
