| Sunnyvale to Karlovo | 6,527.31 mi (10,504.70 km) |
| Sunnyvale to Karnobat | 6,574.80 mi (10,581.11 km) |
| Sunnyvale to Kavarna | 6,551.65 mi (10,543.86 km) |
| Sunnyvale to Kazanlak | 6,542.03 mi (10,528.37 km) |
| Sunnyvale to Knezha | 6,458.10 mi (10,393.31 km) |
| Sunnyvale to Kostinbrod | 6,480.68 mi (10,429.64 km) |
| Sunnyvale to Kozloduy | 6,432.78 mi (10,352.56 km) |
| Sunnyvale to Kyustendil | 6,501.05 mi (10,462.42 km) |
| Sunnyvale to Levski | 6,489.45 mi (10,443.76 km) |
| Sunnyvale to Lom | 6,419.03 mi (10,330.43 km) |
| Sunnyvale to Lovech | 6,494.80 mi (10,452.36 km) |
| Sunnyvale to Lukovit | 6,478.54 mi (10,426.20 km) |
| Sunnyvale to Lyaskovets | 6,518.69 mi (10,490.82 km) |
| Sunnyvale to Mezdra | 6,471.15 mi (10,414.31 km) |
| Sunnyvale to Momchilgrad | 6,610.00 mi (10,637.76 km) |
