How far is Lanham, MD from Rockville, MD?
Distance by Flight
Shortest distance between Lanham and Rockville is 17.45 miles (28.09 km).
Flight distance from Lanham, MD to Rockville, MD is 17.45 miles. Estimated flight time is 00 hours 02 minutes.
Driving distance
The driving distance from Lanham, Maryland to Rockville, Maryland is: 23.21 miles (37.35 km) by car.
Driving from Lanham to Rockville will take approximately 00 hours 29 minutes.
#1 Lanham
| Population | |
|---|---|
| GPS Coordinates | 38°58'8"N 76°51'48"W |
| Latitude | 38.9687500 |
| Longitude | -76.8634000 |
| Altitude | 43 |
| Country | United States |
#2 Rockville
The most populous city in Montgomery County, Maryland. It is located in the Washington metropolitan area. Rockville is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the National Mall and the National Air and Space Museum.
| Population | 69512 |
|---|---|
| GPS Coordinates | 39°5'2"N 77°9'10"W |
| Latitude | 39.0840000 |
| Longitude | -77.1527600 |
| Altitude | 137 |
| Country | United States |
Ending point in Rockville: South Washington Street (-77.152887,39.083997)
Estimated Travel Time Between Lanham and Rockville
The distance between Lanham and Rockville is 37 km if you choose to drive by road. You can go 00 hours 24 minutes if you drive your car at an average speed of 90 kilometers / hour. For different choices, please review the avg. speed travel time table on the below.
There is no time difference between Lanham and Rockville. The current time is 12:33:53.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 00 hours 46 minutes |
| 40 mph (64.37 km/h) | 00 hours 34 minutes |
| 50 mph (80.47 km/h) | 00 hours 27 minutes |
| 60 mph (96.56 km/h) | 00 hours 23 minutes |
| 70 mph (112.65 km/h) | 00 hours 19 minutes |
| 75 mph (120.7 km/h) | 00 hours 18 minutes |
| 80 mph (128.75 km/h) | 00 hours 17 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 3.1 liters (0.82 gallon) of gas to cover the route between Lanham and Rockville.
The estimated cost of gas to go from Lanham to Rockville is $2.76 (diesel $3.61).
Maryland gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.36 | $3.93 | $4.24 | $4.41 |
| Total | $2.76 | $3.22 | $3.47 | $3.61 |
Take a look at our Gas Cost Calculator feature. It will figure out how much it will cost to drive this particular distance.
The average gas price (in Maryland ) per gallon of daily gas for calculations is $3.364 (Diesel $4.407) /gallon. Last changed prices on December 24, 2025.
How did we calculate the distance?
The place names are translated into coordinates to approximate the distance between Lanham and Rockville (latitude and longitude). Cities, states, and countries each have their own regional center. The Haversine formula is used to measure the radius.
Distance to Other Cities
Driving distance from Columbia, MD to Lanham 28.06 miles (45 km)
Driving distance from Gwynn Oak, MD to Lanham 36.31 miles (58 km)
