| Gaithersburg to Kothen | 4,132.14 mi (6,650.04 km) |
| Gaithersburg to Kranenburg | 3,900.82 mi (6,277.76 km) |
| Gaithersburg to Krefeld | 3,935.18 mi (6,333.07 km) |
| Gaithersburg to Kressbronn am Bodensee | 4,167.87 mi (6,707.54 km) |
| Gaithersburg to Kreuzau | 3,948.13 mi (6,353.91 km) |
| Gaithersburg to Kreuztal | 4,000.93 mi (6,438.87 km) |
| Gaithersburg to Kriftel | 4,046.29 mi (6,511.88 km) |
| Gaithersburg to Kronach | 4,155.57 mi (6,687.74 km) |
| Gaithersburg to Kronberg | 4,044.70 mi (6,509.32 km) |
| Gaithersburg to Kronshagen | 3,987.92 mi (6,417.93 km) |
| Gaithersburg to Krumbach | 4,178.98 mi (6,725.41 km) |
| Gaithersburg to Kulmbach | 4,164.11 mi (6,701.48 km) |
| Gaithersburg to Kummersbruck | 4,203.47 mi (6,764.83 km) |
| Gaithersburg to Kunzell | 4,082.43 mi (6,570.04 km) |
| Gaithersburg to Kunzelsau | 4,119.19 mi (6,629.19 km) |
