| Chillicothe to Karlovo | 5,195.54 mi (8,361.42 km) |
| Chillicothe to Karnobat | 5,279.49 mi (8,496.52 km) |
| Chillicothe to Kavarna | 5,293.31 mi (8,518.76 km) |
| Chillicothe to Kazanlak | 5,219.65 mi (8,400.21 km) |
| Chillicothe to Knezha | 5,129.48 mi (8,255.10 km) |
| Chillicothe to Kostinbrod | 5,125.97 mi (8,249.45 km) |
| Chillicothe to Kozloduy | 5,103.51 mi (8,213.31 km) |
| Chillicothe to Kyustendil | 5,128.37 mi (8,253.32 km) |
| Chillicothe to Levski | 5,175.70 mi (8,329.49 km) |
| Chillicothe to Lom | 5,082.56 mi (8,179.58 km) |
| Chillicothe to Lovech | 5,170.11 mi (8,320.49 km) |
| Chillicothe to Lukovit | 5,145.98 mi (8,281.66 km) |
| Chillicothe to Lyaskovets | 5,209.99 mi (8,384.67 km) |
| Chillicothe to Mezdra | 5,130.13 mi (8,256.14 km) |
| Chillicothe to Momchilgrad | 5,269.24 mi (8,480.02 km) |
