| Petaluma to Karlovo | 6,486.08 mi (10,438.33 km) |
| Petaluma to Karnobat | 6,532.21 mi (10,512.57 km) |
| Petaluma to Kavarna | 6,507.94 mi (10,473.52 km) |
| Petaluma to Kazanlak | 6,500.43 mi (10,461.43 km) |
| Petaluma to Knezha | 6,416.96 mi (10,327.10 km) |
| Petaluma to Kostinbrod | 6,440.36 mi (10,364.76 km) |
| Petaluma to Kozloduy | 6,391.74 mi (10,286.51 km) |
| Petaluma to Kyustendil | 6,461.30 mi (10,398.45 km) |
| Petaluma to Levski | 6,447.72 mi (10,376.61 km) |
| Petaluma to Lom | 6,378.27 mi (10,264.84 km) |
| Petaluma to Lovech | 6,453.41 mi (10,385.77 km) |
| Petaluma to Lukovit | 6,437.47 mi (10,360.11 km) |
| Petaluma to Lyaskovets | 6,476.70 mi (10,423.25 km) |
| Petaluma to Mezdra | 6,430.39 mi (10,348.72 km) |
| Petaluma to Momchilgrad | 6,568.82 mi (10,571.49 km) |
