How far is Thurmont, MD from Rockville, MD?
The driving distance from Thurmont, MD to Rockville, MD is about 45.3 miles (72.9 km), with a travel time of about 00h 48m by car.
- The straight-line flight distance is about 39.8 miles (64 km).
- For a round trip, plan for roughly 01h 37m 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 48m.
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.
Town in Frederick County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Driving Route Map
The map below follows the saved road route between Thurmont and Rockville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Thurmont and Rockville.
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1
Start on East Main Street
62 m · 12 sec · East Main Street
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2
Turn left onto Water Street
677 ft · 24 sec · Water Street
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3
Turn right onto Frederick Road
1.1 km · 1 min · Frederick Road
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4
Turn right onto Tippin Drive
540 ft · 21 sec · Tippin Drive
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5
Take the ramp left toward US 15 South
1478 ft · 36 sec
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6
Merge slight left onto Catoctin Mountain Highway
12.5 mi · 17 min · Catoctin Mountain Highway
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7
Continue on Frederick Freeway
4 mi · 5 min · Frederick Freeway
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8
Continue on Eisenhower Memorial Highway
22.9 mi · 29 min · Eisenhower Memorial Highway
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9
Keep slight right
2.5 mi · 3 min
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10
Take the exit slight right toward MD 28: West Montgomery Avenue
1074 ft · 28 sec
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11
Turn left onto Key West Highway
957 ft · 33 sec · Key West Highway
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12
Continue on West Montgomery Avenue
1.5 km · 2 min · West Montgomery Avenue
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13
Turn left onto West Montgomery Avenue
1159 ft · 38 sec · West Montgomery Avenue
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14
Turn right onto South Washington Street
19 m · 2 sec · South Washington Street
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15
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between Thurmont and Rockville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Eisenhower Memorial Highway
Continue on Eisenhower Memorial Highway
22.9 mi · 00h 29m
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.
Sunny leaving Thurmont and Sunny near Rockville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Thurmont to Rockville?
The road trip is about 45.3 miles (72.9 km) and usually takes 00h 48m 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?
Buckeystown is a useful midpoint, sitting about 22.4 miles from Thurmont and 22.9 miles from Rockville.
How much longer is the road route than the straight-line distance?
The direct path is about 39.8 miles (64 km), while the road route adds roughly 5.5 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 4:52 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $6.54 one way or $13.08 round trip. Estimated CO2 is about 14.2 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Thurmont and Sunny near Rockville.
Stop Ideas Near Buckeystown
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Buckeystown.
Frederick, MD
Frederick Airport, MD
Harpers Ferry
Rockville station
Flight Path Map
This map shows the direct air route between Thurmont and Rockville. Straight-line distance: 39.76 mi (63.98 km).
#1 Thurmont
Town in Frederick County, Maryland, United States
| Population | 7,070 |
| Coordinates | 39.6237100, -77.4108200 |
| Altitude | 158 |
| Country | United States |
#2 Rockville
The most populous city in Montgomery County, Maryland.
| Population | 69,512 |
| Coordinates | 39.0840000, -77.1527600 |
| Altitude | 137 |
| Country | United States |
End: South Washington Street (-77.152887, 39.083997)
Estimated Travel Time
Distance: 73 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 30m |
| 40 mph (64.37 km/h) | 01h 07m |
| 50 mph (80.47 km/h) | 00h 54m |
| 60 mph (96.56 km/h) | 00h 45m |
| 70 mph (112.65 km/h) | 00h 38m |
| 80 mph (129 km/h) | 00h 33m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $6.54 | $13.08 |
| Mid-grade | $4.60 | $7.36 | $14.72 |
| Premium | $4.95 | $7.93 | $15.85 |
| Diesel | $5.98 | $9.57 | $19.14 |
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 · May 12, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.