| Kazanlak to Ridgeland (Mississippi) | 5,841.18 mi (9,400.46 km) |
| Kazanlak to Ridgewood (New Jersey) | 4,793.39 mi (7,714.22 km) |
| Kazanlak to Rifle (Colorado) | 6,049.31 mi (9,735.43 km) |
| Kazanlak to Rincon (Georgia) | 5,487.15 mi (8,830.71 km) |
| Kazanlak to Ringwood (New Jersey) | 4,794.52 mi (7,716.03 km) |
| Kazanlak to Río Grande (Puerto Rico) | 5,427.78 mi (8,735.17 km) |
| Kazanlak to Rio Grande City (Texas) | 6,495.38 mi (10,453.31 km) |
| Kazanlak to Rio Linda (California) | 6,446.75 mi (10,375.04 km) |
| Kazanlak to Rio Rancho (New Mexico) | 6,264.18 mi (10,081.23 km) |
| Kazanlak to Rio Rico (Arizona) | 6,617.27 mi (10,649.46 km) |
| Kazanlak to Ripon (California) | 6,499.67 mi (10,460.21 km) |
| Kazanlak to River Edge (New Jersey) | 4,792.81 mi (7,713.28 km) |
| Kazanlak to River Falls (Wisconsin) | 5,289.38 mi (8,512.43 km) |
| Kazanlak to River Forest (Illinois) | 5,274.52 mi (8,488.52 km) |
| Kazanlak to River Grove (Illinois) | 5,273.73 mi (8,487.25 km) |
