| Rocky River to Karlovo | 5,051.12 mi (8,129.00 km) |
| Rocky River to Karnobat | 5,133.83 mi (8,262.10 km) |
| Rocky River to Kavarna | 5,146.25 mi (8,282.08 km) |
| Rocky River to Kazanlak | 5,074.91 mi (8,167.27 km) |
| Rocky River to Knezha | 4,984.69 mi (8,022.09 km) |
| Rocky River to Kostinbrod | 4,982.32 mi (8,018.26 km) |
| Rocky River to Kozloduy | 4,958.66 mi (7,980.20 km) |
| Rocky River to Kyustendil | 4,985.55 mi (8,023.47 km) |
| Rocky River to Levski | 5,030.45 mi (8,095.72 km) |
| Rocky River to Lom | 4,937.94 mi (7,946.85 km) |
| Rocky River to Lovech | 5,025.30 mi (8,087.44 km) |
| Rocky River to Lukovit | 5,001.42 mi (8,049.01 km) |
| Rocky River to Lyaskovets | 5,064.64 mi (8,150.76 km) |
| Rocky River to Mezdra | 4,985.88 mi (8,024.00 km) |
| Rocky River to Momchilgrad | 5,125.47 mi (8,248.65 km) |
