| Forest Grove to Karlovo | 6,033.32 mi (9,709.69 km) |
| Forest Grove to Karnobat | 6,073.92 mi (9,775.03 km) |
| Forest Grove to Kavarna | 6,045.33 mi (9,729.02 km) |
| Forest Grove to Kazanlak | 6,046.18 mi (9,730.38 km) |
| Forest Grove to Knezha | 5,964.75 mi (9,599.33 km) |
| Forest Grove to Kostinbrod | 5,991.52 mi (9,642.42 km) |
| Forest Grove to Kozloduy | 5,939.97 mi (9,559.46 km) |
| Forest Grove to Kyustendil | 6,014.79 mi (9,679.87 km) |
| Forest Grove to Levski | 5,993.03 mi (9,644.85 km) |
| Forest Grove to Lom | 5,927.71 mi (9,539.73 km) |
| Forest Grove to Lovech | 6,000.14 mi (9,656.29 km) |
| Forest Grove to Lukovit | 5,985.51 mi (9,632.75 km) |
| Forest Grove to Lyaskovets | 6,020.94 mi (9,689.76 km) |
| Forest Grove to Mezdra | 5,979.73 mi (9,623.44 km) |
| Forest Grove to Momchilgrad | 6,116.15 mi (9,842.99 km) |
