| Gaithersburg to Kidbrooke | 3,668.89 mi (5,904.51 km) |
| Gaithersburg to Kidderminster | 3,556.96 mi (5,724.37 km) |
| Gaithersburg to Kidlington | 3,607.39 mi (5,805.53 km) |
| Gaithersburg to Kidsgrove | 3,543.29 mi (5,702.37 km) |
| Gaithersburg to Killamarsh | 3,575.88 mi (5,754.82 km) |
| Gaithersburg to Killingworth | 3,533.90 mi (5,687.26 km) |
| Gaithersburg to Kilmarnock | 3,412.09 mi (5,491.23 km) |
| Gaithersburg to Kilsyth | 3,423.02 mi (5,508.82 km) |
| Gaithersburg to Kilwinning | 3,403.54 mi (5,477.47 km) |
| Gaithersburg to King's Lynn | 3,655.37 mi (5,882.75 km) |
| Gaithersburg to Kings Norton | 3,569.56 mi (5,744.66 km) |
| Gaithersburg to Kingsnorth | 3,710.77 mi (5,971.91 km) |
| Gaithersburg to Kingsteignton | 3,538.84 mi (5,695.21 km) |
| Gaithersburg to Kingston upon Hull | 3,605.87 mi (5,803.08 km) |
| Gaithersburg to Kingston upon Thames | 3,656.72 mi (5,884.93 km) |
