How far is Lanham, MD from Gaithersburg, MD?
Distance by Flight
Shortest distance between Lanham and Gaithersburg is 21.78 miles (35.06 km).
Flight distance from Lanham, MD to Gaithersburg, MD is 21.78 miles. Estimated flight time is 00 hours 03 minutes.
Driving distance
The driving distance from Lanham, Maryland to Gaithersburg, Maryland is: 30.84 miles (49.64 km) by car.
Driving from Lanham to Gaithersburg will take approximately 00 hours 35 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 Gaithersburg
The second most populous city in Montgomery County, Maryland. It is located in the Washington metropolitan area. Gaithersburg is known for its many parks and green spaces, its many historical sites, and its many attractions, such as the Gaithersburg Arts and Entertainment District and the Gaithersburg Metro Station.
| Population | 67741 |
|---|---|
| GPS Coordinates | 39°8'36"N 77°12'5"W |
| Latitude | 39.1434400 |
| Longitude | -77.2013700 |
| Altitude | 153 |
| Country | United States |
Ending point in Gaithersburg: (-77.201269,39.143361)
Estimated Travel Time Between Lanham and Gaithersburg
The distance between Lanham and Gaithersburg is 50 km if you choose to drive by road. You can go 00 hours 33 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 Gaithersburg. The current time is 14:25:11.
| Average Speed | Travel Time |
|---|---|
| 30 mph (48.3 km/h) | 01 hours 01 minutes |
| 40 mph (64.37 km/h) | 00 hours 46 minutes |
| 50 mph (80.47 km/h) | 00 hours 37 minutes |
| 60 mph (96.56 km/h) | 00 hours 30 minutes |
| 70 mph (112.65 km/h) | 00 hours 26 minutes |
| 75 mph (120.7 km/h) | 00 hours 24 minutes |
| 80 mph (128.75 km/h) | 00 hours 23 minutes |
Gas Consumption
A car with a fuel efficiency of 8.3 l/100 km will need 4.12 liters (1.09 gallon) of gas to cover the route between Lanham and Gaithersburg.
The estimated cost of gas to go from Lanham to Gaithersburg is $3.66 (diesel $4.8).
Maryland gas prices.
| Gasoline | Mid Grade | Premium | Diesel | |
|---|---|---|---|---|
| Gallon | $3.36 | $3.93 | $4.24 | $4.41 |
| Total | $3.66 | $4.28 | $4.61 | $4.8 |
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 Gaithersburg (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)
