| Rockville to Indianapolis (Indiana) | 481.98 mi (775.68 km) |
| Rockville to Indianola (Iowa) | 878.52 mi (1,413.84 km) |
| Rockville to Indio (California) | 2,187.14 mi (3,519.86 km) |
| Rockville to Inglewood (California) | 2,294.57 mi (3,692.75 km) |
| Rockville to Inkster (Michigan) | 391.41 mi (629.91 km) |
| Rockville to Inver Grove Heights (Minnesota) | 906.29 mi (1,458.54 km) |
| Rockville to Inwood (New York) | 209.53 mi (337.21 km) |
| Rockville to Iona (Florida) | 911.67 mi (1,467.19 km) |
| Rockville to Ionia (Michigan) | 492.29 mi (792.26 km) |
| Rockville to Iowa City (Iowa) | 776.30 mi (1,249.33 km) |
| Rockville to Irmo (South Carolina) | 410.63 mi (660.84 km) |
| Rockville to Irondale (Alabama) | 652.49 mi (1,050.09 km) |
| Rockville to Ironton (Ohio) | 299.72 mi (482.36 km) |
| Rockville to Irvine (California) | 2,271.02 mi (3,654.85 km) |
| Rockville to Irving (Texas) | 1,185.46 mi (1,907.82 km) |
