How far is Grasonville, MD from Rockville, MD?
The driving distance from Grasonville, MD to Rockville, MD is about 61.9 miles (99.6 km), with a travel time of about 01h 10m by car.
- The straight-line flight distance is about 51.3 miles (82.6 km).
- For a round trip, plan for roughly 02h 20m 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 01h 10m.
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.
The most populous city in Prince George's County, Maryland.
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 Grasonville and Rockville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Grasonville and Rockville.
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1
Start on Perrys Corner Road
25 m · 10 sec · Perrys Corner Road
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2
Turn left onto Main Street
1011 ft · 31 sec · Main Street
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3
Turn right onto Chester River Beach Road
1606 ft · 44 sec · Chester River Beach Road
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4
Take the ramp left
895 ft · 22 sec
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5
Merge slight left onto Blue Star Memorial Highway
18.7 mi · 27 min · Blue Star Memorial Highway
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6
Continue on John Hanson Highway
18.4 mi · 22 min · John Hanson Highway
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7
Take the exit slight right toward I 95 North, I 495 North: Baltimore, Silver Spring
2347 ft · 57 sec
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8
Keep slight left to continue on I 495 North, I 95 North: Beltway
3221 ft · 1 min
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9
Merge slight left onto Capital Beltway
6.9 mi · 9 min · Capital Beltway
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10
Keep slight left to continue on Capital Beltway
9.5 mi · 12 min · Capital Beltway
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11
Keep slight right to continue on I 270 North: Frederick
3.6 mi · 5 min
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12
Keep slight right to continue on I 270 North
1.8 mi · 2 min
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13
Take the exit slight right toward MD 189: Falls Road
753 ft · 18 sec
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14
Keep slight right to continue on MD 189 North: Falls Road, Rockville, Town Center
567 ft · 14 sec
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15
Turn straight onto Falls Road
132 m · 21 sec · Falls Road
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16
Turn left onto Great Falls Road
1.1 km · 2 min · Great Falls Road
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17
Continue on West Montgomery Avenue
1159 ft · 38 sec · West Montgomery Avenue
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18
Turn right onto South Washington Street
19 m · 2 sec · South Washington Street
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19
Arrive at your destination
0 m · 1 sec · South Washington Street
Car Route Details
A richer read on the saved driving route between Grasonville 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.
Blue Star Memorial Highway
Merge slight left onto Blue Star Memorial Highway
18.7 mi · 00h 27m
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 Grasonville and Sunny near Rockville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Grasonville to Rockville?
The road trip is about 61.9 miles (99.6 km) and usually takes 01h 10m 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?
Bowie is a useful midpoint, sitting about 30.9 miles from Grasonville and 31 miles from Rockville.
How much longer is the road route than the straight-line distance?
The direct path is about 51.3 miles (82.6 km), while the road route adds roughly 10.6 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 4:10 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.91 one way or $17.81 round trip. Estimated CO2 is about 19.4 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Grasonville and Sunny near Rockville.
Stop Ideas Near Bowie
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 Bowie.
New Carrollton station
Washington Union Station
BWI Rail Station
Union Station
Flight Path Map
This map shows the direct air route between Grasonville and Rockville. Straight-line distance: 51.34 mi (82.62 km).
#1 Grasonville
Census designated place
| Population | 3,425 |
| Coordinates | 38.9581700, -76.2102300 |
| Altitude | 3 |
| 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: 100 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 03m |
| 40 mph (64.37 km/h) | 01h 32m |
| 50 mph (80.47 km/h) | 01h 14m |
| 60 mph (96.56 km/h) | 01h 01m |
| 70 mph (112.65 km/h) | 00h 53m |
| 80 mph (129 km/h) | 00h 46m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $8.91 | $17.81 |
| Mid-grade | $4.60 | $10.03 | $20.05 |
| Premium | $4.95 | $10.80 | $21.60 |
| Diesel | $5.98 | $13.04 | $26.07 |
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 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.