| Coolidge to Karlovo | 6,528.46 mi (10,506.55 km) |
| Coolidge to Karnobat | 6,592.09 mi (10,608.94 km) |
| Coolidge to Kavarna | 6,583.53 mi (10,595.17 km) |
| Coolidge to Kazanlak | 6,547.41 mi (10,537.03 km) |
| Coolidge to Knezha | 6,459.10 mi (10,394.92 km) |
| Coolidge to Kostinbrod | 6,471.23 mi (10,414.44 km) |
| Coolidge to Kozloduy | 6,432.97 mi (10,352.87 km) |
| Coolidge to Kyustendil | 6,484.41 mi (10,435.66 km) |
| Coolidge to Levski | 6,497.29 mi (10,456.38 km) |
| Coolidge to Lom | 6,415.93 mi (10,325.44 km) |
| Coolidge to Lovech | 6,498.21 mi (10,457.86 km) |
| Coolidge to Lukovit | 6,478.33 mi (10,425.87 km) |
| Coolidge to Lyaskovets | 6,529.24 mi (10,507.80 km) |
| Coolidge to Mezdra | 6,467.25 mi (10,408.03 km) |
| Coolidge to Momchilgrad | 6,609.12 mi (10,636.35 km) |
