| Rio Rico to Karlovo | 6,597.87 mi (10,618.24 km) |
| Rio Rico to Karnobat | 6,663.25 mi (10,723.46 km) |
| Rio Rico to Kavarna | 6,656.37 mi (10,712.39 km) |
| Rio Rico to Kazanlak | 6,617.27 mi (10,649.46 km) |
| Rio Rico to Knezha | 6,528.61 mi (10,506.78 km) |
| Rio Rico to Kostinbrod | 6,539.49 mi (10,524.28 km) |
| Rio Rico to Kozloduy | 6,502.44 mi (10,464.66 km) |
| Rio Rico to Kyustendil | 6,551.79 mi (10,544.08 km) |
| Rio Rico to Levski | 6,567.53 mi (10,569.42 km) |
| Rio Rico to Lom | 6,485.04 mi (10,436.67 km) |
| Rio Rico to Lovech | 6,567.93 mi (10,570.07 km) |
| Rio Rico to Lukovit | 6,547.67 mi (10,537.45 km) |
| Rio Rico to Lyaskovets | 6,599.74 mi (10,621.26 km) |
| Rio Rico to Mezdra | 6,536.17 mi (10,518.95 km) |
| Rio Rico to Momchilgrad | 6,678.13 mi (10,747.41 km) |
