| Gaithersburg to Kanjiza | 4,647.52 mi (7,479.47 km) |
| Gaithersburg to Kikinda | 4,672.45 mi (7,519.59 km) |
| Gaithersburg to Kladovo | 4,807.09 mi (7,736.27 km) |
| Gaithersburg to Knic | 4,757.61 mi (7,656.64 km) |
| Gaithersburg to Knjazevac | 4,844.32 mi (7,796.19 km) |
| Gaithersburg to Koceljeva | 4,698.82 mi (7,562.02 km) |
| Gaithersburg to Kosjeric | 4,721.50 mi (7,598.53 km) |
| Gaithersburg to Kovacica | 4,707.18 mi (7,575.47 km) |
| Gaithersburg to Kovin | 4,735.20 mi (7,620.57 km) |
| Gaithersburg to Kragujevac | 4,762.90 mi (7,665.15 km) |
| Gaithersburg to Kraljevo | 4,763.97 mi (7,666.87 km) |
| Gaithersburg to Krupanj | 4,684.76 mi (7,539.39 km) |
| Gaithersburg to Krusevac | 4,795.76 mi (7,718.03 km) |
| Gaithersburg to Kucevo | 4,774.00 mi (7,683.01 km) |
| Gaithersburg to Kula | 4,644.51 mi (7,474.61 km) |
