| Smithville to Karlovo | 5,618.31 mi (9,041.79 km) |
| Smithville to Karnobat | 5,693.26 mi (9,162.41 km) |
| Smithville to Kavarna | 5,696.67 mi (9,167.90 km) |
| Smithville to Kazanlak | 5,640.13 mi (9,076.92 km) |
| Smithville to Knezha | 5,550.16 mi (8,932.13 km) |
| Smithville to Kostinbrod | 5,554.14 mi (8,938.52 km) |
| Smithville to Kozloduy | 5,523.92 mi (8,889.89 km) |
| Smithville to Kyustendil | 5,561.77 mi (8,950.80 km) |
| Smithville to Levski | 5,592.91 mi (9,000.92 km) |
| Smithville to Lom | 5,504.68 mi (8,858.93 km) |
| Smithville to Lovech | 5,590.38 mi (8,996.85 km) |
| Smithville to Lukovit | 5,568.10 mi (8,960.99 km) |
| Smithville to Lyaskovets | 5,626.36 mi (9,054.75 km) |
| Smithville to Mezdra | 5,554.41 mi (8,938.96 km) |
| Smithville to Momchilgrad | 5,695.88 mi (9,166.63 km) |
