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Trip from Thurmont, MD to Gaithersburg, MD

Drive Time

54m

Distance

39.8 mi

64 km

Drive Score

6/10

Good drive

Same Day?

Yes, doable

Fuel Cost

$7

one way

EV Charging

None

0 DC fast

Best Time to Leave

Save up to 14 min
4 AM
0h 50m ★
6 AM
0h 55m
8 AM
1h 4m
10 AM
0h 58m
12 PM
0h 57m
3 PM
0h 58m
5 PM
1h 3m
8 PM
0h 52m

Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.

Best Time Drive vs Fly
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Downtown Thurmont, MD, MD

Thurmont, MD

RDNE Stock project

Downtown Gaithersburg, MD, MD

Gaithersburg, MD

RDNE Stock project

Trip Overview

The drive from Thurmont, MD to Gaithersburg, MD covers 39.8 miles and takes about 54m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on Eisenhower Memorial Highway, Catoctin Mountain Highway, Frederick Freeway for much of the mileage, and the overall profile is turn-heavy local drive. The longest uninterrupted segment is about 19.9 miles on Eisenhower Memorial Highway. At current regular gas prices, budget about $6.59 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is realistic if you keep stops short.

Break Rhythm

0 planned breaks

A short stop every 2 to 3 hours is enough for this drive.

Midpoint

19.9 miles from Thurmont, MD

A natural place for your longest stop of the day , about 28m into the drive .

Drive Character

Expect a 54m drive with frequent turns across 39.8 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.
There are about 14 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
Eisenhower Memorial Highway is the longest continuous segment at about 19.9 miles.

How Hard Is This Drive?

Expect a hands-on drive with frequent turns and local roads rather than long highway stretches. You will hit about 8 points where you need to pay attention to lane position or signs. The trickiest moment comes early in the drive near Water Street.

Route Complexity 6/10

Moderate - straightforward overall, but long enough or busy enough to require pacing

This drive requires moderate attention. Across 39.8 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.

Where does it get tricky?

The main spots that need attention: near the start (Water Street): Navigation decision point; at 0.9 miles: Complex interchange - multiple decisions in a short stretch; at 1.2 miles (US 15 / Catoctin Mountain Highway): Merge point - match speed before joining. Lane positioning matters here.

Critical Maneuvers

5 of 8 key points

These are the spots where you need to pay the most attention. Preview them before you drive.

5
0 mi into trip | ~0m in | Water Street

Turn left onto Water Street

Navigation decision point

6
0.9 mi into trip | ~2m in

Take the ramp toward US 15 South

Complex interchange - multiple decisions in a short stretch

Toward US 15 South
5
1.2 mi into trip | ~2m in | US 15 / Catoctin Mountain Highway

Merge onto US 15 / Catoctin Mountain Highway

Merge point - match speed before joining. Lane positioning matters here

Use the right lane.
8
37.7 mi into trip | ~50m in

Take the exit toward MD 124: Montgomery Village Avenue, Quince Orchard Road

Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one

Use the slight right lane. Exit 11 Toward MD 124: Montgomery Village Avenue, Quinc...
5
38.5 mi into trip | ~52m in

Keep slight left at fork toward MD 124 North: Montgomery Village Avenue

Highway fork - watch signs carefully

Toward MD 124 North: Montgomery Village Avenue

Main Roads

Road Distance Duration
Eisenhower Memorial Highway 19.9 mi 24m
Catoctin Mountain Highway 12.5 mi 17m
Frederick Freeway 4 mi 5m
North Frederick Avenue 0.9 mi 1m
Frederick Road 0.7 mi 1m
Quince Orchard Road 0.4 mi <1m
Water Street 0.1 mi <1m
Tippin Drive 0.1 mi <1m
Longest stretch: Eisenhower Memorial Highway — 19.9 mi, about 24m

Turn-by-Turn Driving Directions

Step-by-step road directions between Thurmont, MD and Gaithersburg, MD.

1

Start on MD 77; MD 550

202 ft · 11 sec · East Main Street
2

Turn left onto Water Street

0.1 mi · 23 sec · Water Street
3

Turn right onto MD 806

0.7 mi · 1 min · Frederick Road
4

Turn right onto Tippin Drive

0.1 mi · 20 sec · Tippin Drive
5

Take the ramp

0.3 mi · 36 sec
Toward US 15 South
6

Merge onto US 15

13 mi · 17 min · Catoctin Mountain Highway
Use the right lane.
7

Continue on US 15

4.0 mi · 5 min · Frederick Freeway
Use the straight / slight right lanes.
8

Continue on I 270

20 mi · 24 min · Eisenhower Memorial Highway
Use the straight / slight right lanes.
9

Take the exit

0.8 mi · 1 min
Exit 11 Toward MD 124: Montgomery Village Avenue, Quince Orchard Road Use the slight right lane.
10

Keep slight left at fork

127 ft · 5 sec
Toward MD 124 North: Montgomery Village Avenue
11

Turn left onto MD 124

0.4 mi · 44 sec · Quince Orchard Road
12

Turn right onto MD 355

0.9 mi · 1 min · North Frederick Avenue
13

Turn right

85 ft · 6 sec
14

Arrive at destination

Trip Plan

Morning Departure

Leave by 9 AM and you'll arrive before lunch.

Evening Departure

Even a 4 PM departure gets you there before dark in summer.

You can normally do this drive in one day.
You may only need one short stretch break if traffic stays light.
The halfway point lands around 19.9 miles from Thurmont, MD, or about 28m into the drive.
The longest continuous stretch on this route runs about 19.9 miles.

This is a comfortable same-day trip.

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 39.8 miles or 54m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 19.9 miles or 28m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 45m

Traffic, exits, and arrival timing usually matter more near Gaithersburg, MD than in the middle of the route.

Before You Leave

+

Open the route before leaving Thurmont, MD so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Day 1

Settle into the route from Thurmont, MD

This is one driving day of about 39.8 miles and 54m.

Your first comfortable stop window is around 80 miles from Thurmont, MD.
This route can stay practical as a one-day drive if traffic stays reasonable.
You may only need one short stretch stop if conditions stay smooth.
The longest stretch is on Eisenhower Memorial Highway for about 19.9 miles.

Where to Stop

Rest stops, refuel points, and overnight suggestions along this route.

Halfway Point

Midpoint

About 19.9 mi from Thurmont, MD · 28m into the drive

Downtown Washington, DC, DC

Mid-route town

Meal stop

Washington, DC

20 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Pacing Suggestions

Rockville, MD

Fuel and coffee

A short stop after about 39.8 miles helps settle the day before fatigue starts building.

Washington, DC

Meal break

The midpoint is around 19.9 miles from Thurmont, MD, which is a good place for a longer meal and fuel stop.

Arriving in Gaithersburg, MD

The final approach into Gaithersburg, MD usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around Gaithersburg, MD.

These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.

National Parks Near This Route

Worth a detour if your schedule allows.

Monocacy National Battlefield

Monocacy National Battlefield

National Battlefield

During the summer of 1864, the Confederacy carried out a bold plan to turn the tide of the Civil War in their favor. They planned to capture Washington, DC and influence the election of 1864. On July...

0 mi from route Free near mile 20.6
View on nps.gov
Chesapeake & Ohio Canal National Historical Park

Chesapeake & Ohio Canal National Historical Park

National Historical Park

Preserving America's early transportation history, the C&O Canal began as a dream of passage to Western wealth. Operating for nearly 100 years the canal was a lifeline for communities along the Potoma...

10 mi from route ~26 min detour $20 near mile 39.8
View on nps.gov
Potomac Heritage National Scenic Trail

Potomac Heritage National Scenic Trail

National Scenic Trail

The Potomac River corridor is rich in both history and recreation, offering a chance to both explore your heritage and choose your adventure along the way. Start your journey here!

14 mi from route ~34 min detour Free near mile 30.2
View on nps.gov
Antietam National Battlefield

Antietam National Battlefield

National Battlefield

23,000 soldiers were killed, wounded or missing after twelve hours of savage combat on September 17, 1862. The Battle of Antietam ended the Confederate Army of Northern Virginia's first invasion into...

17 mi from route ~41 min detour $20 near mile 16.5
View on nps.gov
Harpers Ferry National Historical Park

Harpers Ferry National Historical Park

National Historical Park

At the confluence of the Shenandoah and Potomac rivers, on the ancestral home of the Tuscarora and Shawnee people, lies Harpers Ferry. Here you can explore John Brown's Raid against slavery. Find your...

17 mi from route ~44 min detour $20 near mile 16.5
View on nps.gov

Park data from the National Park Service API. Alerts update every 2 hours.

Fuel & Cost

Regular Gas

$6.59 one way

$13.17 round trip

$4.20/gal 25.4 MPG avg 14 kg CO2
Fuel Type $/gal One Way Round Trip
midgrade $4.60 $7.21 $14.41
premium $4.92 $7.71 $15.42
diesel $5.64 $8.84 $17.68

No toll roads detected on this route.

Estimated Trip Cost (one way, 1 person)

Fuel

$7

Meals

$25–$50

Total

$32–$57

Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.

Estimated CO2 emission: 13.9 kg one way. Prices: EIA weekly data, 2026-04-06.

Driving Electric?

About $4 in charging · 0 stops · 64% less CO2

Vehicle Type kWh Stops DC Fast Home Charge
Average EV 11.9 0 $4.18 $1.91
Efficient EV 10 0 $3.48 $1.59
EV Truck/SUV 15.9 0 $5.57 $2.55

Gas CO2

14 kg

EV CO2

5 kg (64% less)

This trip is well within single-charge range for most EVs. No charging stops needed if you start fully charged.

DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.

Travel Intel

Current conditions at both ends of the drive.

Forecast data refreshed 1 day ago

Origin

Thurmont, MD

Morning in Thurmont on Monday

Local time

9:12 AM

EDT

Current temp

60°F

Unavailable

Live forecast

Destination

Gaithersburg, MD

Morning in Gaithersburg on Monday

Local time

9:12 AM

EDT

Current temp

88°F

Unavailable

Live forecast

Along the Route

68°F

Washington, DC

20 mi in

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Time zone

Same local time

Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.

Temperature spread

28 degrees warmer at arrival

A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.

Road read

54m on the road

Use the two city cards together: check the sky where you start, then compare it with the local time and temperature at arrival.

Weather data from the National Weather Service. Conditions may change; check closer to your travel date.

Frequently Asked Questions

The drive from Thurmont, MD to Gaithersburg, MD covers 39.8 miles and takes about 54m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are Eisenhower Memorial Highway, Catoctin Mountain Highway, Frederick Freeway. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 19.9 miles from Thurmont, MD. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $6.59 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
Leave by 9 AM and you'll arrive before lunch. Even a 4 PM departure gets you there before dark in summer.
This drive requires moderate attention. Across 39.8 miles you will encounter 8 spots where lane choice or exit timing matters. Not difficult for experienced highway drivers, but worth previewing the tricky sections before you go.
The main spots that need attention: near the start (Water Street): Navigation decision point; at 0.9 miles: Complex interchange - multiple decisions in a short stretch; at 1.2 miles (US 15 / Catoctin Mountain Highway): Merge point - match speed before joining. Lane positioning matters here.
The route from Thurmont, MD to Gaithersburg, MD does not surface many named destination signs beyond the main corridor.

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