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Drive Time
53m
Distance
39.7 mi
64 km
Drive Score
8/10
Great drive
Same Day?
Yes, doable
Fuel Cost
$7
one way
EV Charging
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station data
Estimated drive times based on typical traffic patterns. Actual times may vary with weather, construction, and real-time conditions.
Gaithersburg, MD
Kristopher Hines
Thurmont, MD
Wikimedia Commons
The drive from Gaithersburg, MD to Thurmont, MD covers 39.7 miles and takes about 53m behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on I 270, Catoctin Mountain Highway, Frederick Freeway for much of the mileage, and the overall profile is highway-focused drive. The longest uninterrupted segment is about 20.2 miles on I 270. At current regular gas prices, budget about $6.58 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
19.8 miles from Gaithersburg, MD
A natural place for your longest stop of the day , about 25m into the drive .
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This is a 53m highway drive covering 39.7 miles, with most of the trip on I 270 and Catoctin Mountain Highway. The longest continuous stretch is about 20.2 miles on I 270.
This is a straightforward highway drive that stays mostly on I 270 and Catoctin Mountain Highway. There are only a few real navigation decisions along the way. The trickiest moment comes early in the drive near MD 355 / North Frederick Avenue.
Easy - simple navigation with a manageable amount of wheel time
This is a straightforward 53m drive. You will face about 9 decision points, but nothing that requires special attention if you follow navigation.
Where does it get tricky?
The main spots that need attention: near the start (MD 355 / North Frederick Avenue): Navigation decision point; at 0.9 miles (MD 124 / Quince Orchard Road): Lane positioning matters here; at 1.1 miles: Navigation decision point.
These are the spots where you need to pay the most attention. Preview them before you drive.
Turn left onto MD 355 / North Frederick Avenue
Navigation decision point
Turn left onto MD 124 / Quince Orchard Road
Lane positioning matters here
Take the ramp toward I 270 North
Navigation decision point
Merge onto I 270
Merge point - match speed before joining. Lane positioning matters here
Turn right onto MD 77; MD 550 / East Main Street
Navigation decision point
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
On the drive from Gaithersburg, MD to Thurmont, MD, road signs begin pointing toward Gettysburg along the way.
Gettysburg
| Road | Distance | Duration |
|---|---|---|
| I 270 | 20.2 mi | 25m |
| Catoctin Mountain Highway | 11.8 mi | 16m |
| Frederick Freeway | 4.5 mi | 6m |
| Catoctin Furnace Road | 0.9 mi | 1m |
| North Frederick Avenue | 0.9 mi | 1m |
| Frederick Road | 0.6 mi | 1m |
| Quince Orchard Road | 0.2 mi | <1m |
| Blue Mountain Road | 0.1 mi | <1m |
Step-by-step road directions between Gaithersburg, MD and Thurmont, MD.
Start on this road
Turn left onto MD 355
Turn left onto MD 124
Take the ramp
Merge onto I 270
Continue on Frederick Freeway
Continue on US 15
Turn right onto Blue Mountain Road
Turn left onto MD 806
Continue on MD 806
At end of road, turn left onto Water Street
Turn right onto MD 77; MD 550
Arrive at destination
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.
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 39.7 miles or 53m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 19.8 miles or 25m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 44m
Traffic, exits, and arrival timing usually matter more near Thurmont, MD than in the middle of the route.
Open the route before leaving Gaithersburg, 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 Gaithersburg, MD
This is one driving day of about 39.7 miles and 53m.
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 19.8 mi from Gaithersburg, MD · 25m into the drive
Mid-route town
Meal stop
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.
A short stop after about 39.7 miles helps settle the day before fatigue starts building.
The midpoint is around 19.8 miles from Gaithersburg, MD, which is a good place for a longer meal and fuel stop.
The final approach into Thurmont, 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 Thurmont, MD.
These stop ideas are pacing suggestions — the exact town or exit can change with traffic, hotel plans, and fuel range.
Regular Gas
$6.58 one way
$13.16 round trip
| Fuel Type | $/gal | One Way | Round Trip |
|---|---|---|---|
| midgrade | $4.61 | $7.21 | $14.42 |
| premium | $4.93 | $7.70 | $15.40 |
| diesel | $5.61 | $8.77 | $17.53 |
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, 2026-04-13.
Driving Electric?
About $4 in charging · 0 stops · 64% less CO2
| Vehicle Type | kWh | Stops | DC Fast | Home Charge |
|---|---|---|---|---|
| Average EV | 11.9 | 0 | $4.17 | $1.91 |
| Efficient EV | 9.9 | 0 | $3.47 | $1.59 |
| EV Truck/SUV | 15.9 | 0 | $5.56 | $2.54 |
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.
Current conditions at both ends of the drive.
Origin
Morning in Gaithersburg on Wednesday
Local time
8:14 AM
EDT
Current temp
87°F
Mostly Sunny
Destination
Morning in Thurmont on Wednesday
Local time
8:14 AM
EDT
Current temp
60°F
Unavailable
69°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
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
The weather snapshot is not static. If you are leaving later, give both cities one more quick forecast check before departure.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
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