| Gaithersburg to Kavak | 5,486.53 mi (8,829.72 km) |
| Gaithersburg to Kayapinar | 5,795.98 mi (9,327.73 km) |
| Gaithersburg to Kayseri | 5,577.17 mi (8,975.59 km) |
| Gaithersburg to Kemalpasa | 5,263.81 mi (8,471.28 km) |
| Gaithersburg to Kemer | 5,476.45 mi (8,813.50 km) |
| Gaithersburg to Keskin | 5,458.98 mi (8,785.38 km) |
| Gaithersburg to Kilimli | 5,305.99 mi (8,539.17 km) |
| Gaithersburg to Kilis | 5,737.53 mi (9,233.66 km) |
| Gaithersburg to Kinik | 5,233.01 mi (8,421.71 km) |
| Gaithersburg to Kirikkale | 5,447.22 mi (8,766.45 km) |
| Gaithersburg to Kirkagac | 5,244.74 mi (8,440.59 km) |
| Gaithersburg to Kirklareli | 5,112.16 mi (8,227.23 km) |
| Gaithersburg to Kirsehir | 5,505.15 mi (8,859.69 km) |
| Gaithersburg to Kizilpinar | 5,162.33 mi (8,307.96 km) |
| Gaithersburg to Kiziltepe | 5,848.24 mi (9,411.83 km) |
