| Grand Rapids to Karlovo | 5,121.77 mi (8,242.69 km) |
| Grand Rapids to Karnobat | 5,200.32 mi (8,369.10 km) |
| Grand Rapids to Kavarna | 5,207.93 mi (8,381.35 km) |
| Grand Rapids to Kazanlak | 5,144.49 mi (8,279.26 km) |
| Grand Rapids to Knezha | 5,054.31 mi (8,134.12 km) |
| Grand Rapids to Kostinbrod | 5,055.47 mi (8,136.00 km) |
| Grand Rapids to Kozloduy | 5,028.12 mi (8,091.98 km) |
| Grand Rapids to Kyustendil | 5,061.21 mi (8,145.23 km) |
| Grand Rapids to Levski | 5,098.46 mi (8,205.18 km) |
| Grand Rapids to Lom | 5,008.20 mi (8,059.92 km) |
| Grand Rapids to Lovech | 5,094.75 mi (8,199.20 km) |
| Grand Rapids to Lukovit | 5,071.72 mi (8,162.15 km) |
| Grand Rapids to Lyaskovets | 5,132.29 mi (8,259.62 km) |
| Grand Rapids to Mezdra | 5,057.19 mi (8,138.77 km) |
| Grand Rapids to Momchilgrad | 5,198.00 mi (8,365.37 km) |
