| Harderwijk to Karlovo | 1,113.30 mi (1,791.68 km) |
| Harderwijk to Karnobat | 1,195.24 mi (1,923.55 km) |
| Harderwijk to Kavarna | 1,211.92 mi (1,950.40 km) |
| Harderwijk to Kazanlak | 1,136.48 mi (1,828.99 km) |
| Harderwijk to Knezha | 1,046.24 mi (1,683.76 km) |
| Harderwijk to Kostinbrod | 1,047.21 mi (1,685.31 km) |
| Harderwijk to Kozloduy | 1,020.14 mi (1,641.75 km) |
| Harderwijk to Kyustendil | 1,054.92 mi (1,697.73 km) |
| Harderwijk to Levski | 1,091.64 mi (1,756.83 km) |
| Harderwijk to Lom | 999.82 mi (1,609.05 km) |
| Harderwijk to Lovech | 1,086.79 mi (1,749.03 km) |
| Harderwijk to Lukovit | 1,063.35 mi (1,711.30 km) |
| Harderwijk to Lyaskovets | 1,125.85 mi (1,811.88 km) |
| Harderwijk to Mezdra | 1,048.59 mi (1,687.54 km) |
| Harderwijk to Momchilgrad | 1,189.45 mi (1,914.24 km) |
