Distance between Rockville and St. Mary's County
Distance between Rockville and St. Mary's County is 128.55 km. This distance is equal to 79.88 miles, and 69.37 nautical miles.
The distance line on map shows distance from Rockville to St. Mary's County between two cities.
If you travel with an airplane (which has average speed of 560 miles per hour) between Rockville to St. Mary's County,
It takes 0.14 hours to arrive.
| Rockville | 39.0839973 | -77.1527578 |
|---|---|---|
| St. Mary's County | 38.1060259 | -76.3637285 |
| Distance | 128.55 km | 79.88 miles |
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