| Rockville to Keene (New Hampshire) | 367.87 mi (592.03 km) |
| Rockville to Keizer (Oregon) | 2,356.63 mi (3,792.63 km) |
| Rockville to Keller (Texas) | 1,196.37 mi (1,925.37 km) |
| Rockville to Kelso (Washington) | 2,342.59 mi (3,770.04 km) |
| Rockville to Kemp Mill (Maryland) | 7.75 mi (12.47 km) |
| Rockville to Ken Caryl (Colorado) | 1,488.59 mi (2,395.66 km) |
| Rockville to Kendale Lakes (Florida) | 943.23 mi (1,517.98 km) |
| Rockville to Kendall (Florida) | 945.24 mi (1,521.21 km) |
| Rockville to Kendall Park (New Jersey) | 165.54 mi (266.42 km) |
| Rockville to Kendall West (Florida) | 943.70 mi (1,518.74 km) |
| Rockville to Kenmore (New York) | 282.67 mi (454.92 km) |
| Rockville to Kenmore (Washington) | 2,305.80 mi (3,710.82 km) |
| Rockville to Kenner (Louisiana) | 972.16 mi (1,564.54 km) |
| Rockville to Kennesaw (Georgia) | 541.54 mi (871.52 km) |
| Rockville to Kennett (Missouri) | 731.31 mi (1,176.93 km) |
