| Rockville to Middletown (New York) | 217.66 mi (350.29 km) |
| Rockville to Middletown (Ohio) | 386.55 mi (622.10 km) |
| Rockville to Midland (Michigan) | 482.52 mi (776.54 km) |
| Rockville to Midland (Texas) | 1,479.66 mi (2,381.29 km) |
| Rockville to Midlothian (Illinois) | 583.09 mi (938.40 km) |
| Rockville to Midlothian (Texas) | 1,198.89 mi (1,929.43 km) |
| Rockville to Midlothian (Virginia) | 113.64 mi (182.88 km) |
| Rockville to Midvale (Utah) | 1,833.72 mi (2,951.09 km) |
| Rockville to Midway (Florida) | 818.93 mi (1,317.94 km) |
| Rockville to Midwest City (Oklahoma) | 1,136.72 mi (1,829.37 km) |
| Rockville to Milford (Delaware) | 93.81 mi (150.98 km) |
| Rockville to Milford city (Connecticut) | 261.91 mi (421.50 km) |
| Rockville to Milford Mill (Maryland) | 27.53 mi (44.30 km) |
| Rockville to Mililani Mauka (Hawaii) | 4,820.56 mi (7,757.95 km) |
| Rockville to Mililani Town (Hawaii) | 4,822.77 mi (7,761.49 km) |
