| Kaukauna to Karlovo | 5,150.25 mi (8,288.53 km) |
| Kaukauna to Karnobat | 5,225.55 mi (8,409.71 km) |
| Kaukauna to Kavarna | 5,229.56 mi (8,416.17 km) |
| Kaukauna to Kazanlak | 5,172.15 mi (8,323.77 km) |
| Kaukauna to Knezha | 5,082.15 mi (8,178.94 km) |
| Kaukauna to Kostinbrod | 5,085.97 mi (8,185.08 km) |
| Kaukauna to Kozloduy | 5,055.91 mi (8,136.71 km) |
| Kaukauna to Kyustendil | 5,093.57 mi (8,197.30 km) |
| Kaukauna to Levski | 5,125.03 mi (8,247.93 km) |
| Kaukauna to Lom | 5,036.62 mi (8,105.66 km) |
| Kaukauna to Lovech | 5,122.39 mi (8,243.70 km) |
| Kaukauna to Lukovit | 5,100.05 mi (8,207.74 km) |
| Kaukauna to Lyaskovets | 5,158.52 mi (8,301.83 km) |
| Kaukauna to Mezdra | 5,086.31 mi (8,185.63 km) |
| Kaukauna to Momchilgrad | 5,227.75 mi (8,413.25 km) |
