How far is Somerset, MD from Gaithersburg, MD?
The driving distance from Somerset, MD to Gaithersburg, MD is about 40.8 miles (65.7 km), with a travel time of about 00h 46m by car.
- The straight-line flight distance is about 30.6 miles (49.3 km).
- For a round trip, plan for roughly 01h 32m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 00h 46m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
Census designated place
Route Weather Snapshot
Check the forecast at both ends before you head out.
Rain Showers
Rain Showers Likely
Driving Route Map
The map below follows the saved road route between Somerset and Gaithersburg.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerset and Gaithersburg.
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1
Start on Heather Stone Way
136 m · 30 sec · Heather Stone Way
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2
Turn right onto Crain Highway South
48 m · 10 sec · Crain Highway South
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3
Turn sharp left onto Quarterfield Road
1.5 km · 2 min · Quarterfield Road
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4
Turn left onto I 97 North: Baltimore
1411 ft · 36 sec
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5
Merge slight left
687 ft · 9 sec
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6
Take the exit slight right toward MD 100: Ellicott City, Gibson Island
1350 ft · 33 sec
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7
Keep slight left to continue on MD 100 West: Ellicott City
1.3 km · 2 min
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8
Merge slight left onto Paul T. Pitcher Memorial Highway
7.3 mi · 10 min · Paul T. Pitcher Memorial Highway
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9
Take the exit slight right toward I 95: Baltimore, Washington
1420 ft · 27 sec
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10
Keep slight left to continue on I 95 South: Washington
1.2 km · 2 min
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11
Merge slight left
10.6 mi · 12 min
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12
Take the exit slight right toward MD 200 Toll West
1.5 km · 1 min
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13
Merge slight left onto Intercounty Connector
9.5 mi · 12 min · Intercounty Connector
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14
Continue on Intercounty Connector
6.2 mi · 8 min · Intercounty Connector
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15
Continue straight
2718 ft · 41 sec
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16
Take the exit slight right toward MD 355: Rockville, Gaithersburg
1906 ft · 47 sec
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17
Turn right onto Frederick Road
1160 ft · 27 sec · Frederick Road
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18
Continue on South Frederick Avenue
1.6 mi · 3 min · South Frederick Avenue
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19
Turn left
26 m · 6 sec
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20
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Somerset and Gaithersburg.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
I 95 South
Merge slight left
10.6 mi · 00h 12m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Rain Showers leaving Somerset and Rain Showers Likely near Gaithersburg.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerset to Gaithersburg?
The road trip is about 40.8 miles (65.7 km) and usually takes 00h 46m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
West Laurel is a useful midpoint, sitting about 20.4 miles from Somerset and 20.4 miles from Gaithersburg.
How much longer is the road route than the straight-line distance?
The direct path is about 30.6 miles (49.3 km), while the road route adds roughly 10.2 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:58 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $5.88 one way or $11.77 round trip. Estimated CO2 is about 12.8 kg one way.
What should you check before leaving?
Before you leave, expect Rain Showers around Somerset and Rain Showers Likely near Gaithersburg.
Stop Ideas Near West Laurel
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
City of Rockville City Hall
D C Government
City of Bowie
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to West Laurel.
New Carrollton station
BWI Rail Station
Rockville station
Washington Union Station
Flight Path Map
This map shows the direct air route between Somerset and Gaithersburg. Straight-line distance: 30.64 mi (49.31 km).
#1 Somerset
Town in Maryland, United States
| Population | 1,259 |
| Coordinates | 39.1534400, -76.6296900 |
| Altitude | 22 |
| Country | United States |
#2 Gaithersburg
The second most populous city in Montgomery County, Maryland.
| Population | 67,741 |
| Coordinates | 39.1434400, -77.2013700 |
| Altitude | 153 |
| Country | United States |
End: (-77.201269, 39.143361)
Estimated Travel Time
Distance: 66 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 21m |
| 40 mph (64.37 km/h) | 01h 01m |
| 50 mph (80.47 km/h) | 00h 48m |
| 60 mph (96.56 km/h) | 00h 40m |
| 70 mph (112.65 km/h) | 00h 34m |
| 80 mph (129 km/h) | 00h 30m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $5.88 | $11.77 |
| Mid-grade | $4.60 | $6.62 | $13.25 |
| Premium | $4.95 | $7.13 | $14.27 |
| Diesel | $5.98 | $8.61 | $17.22 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Maryland · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.