How far is Rockville, MD from Grasonville, MD?
The driving distance from Rockville, MD to Grasonville, MD is about 62 miles (99.8 km), with a travel time of about 01h 24m by car.
- The straight-line flight distance is about 51.3 miles (82.6 km).
- For a round trip, plan for roughly 02h 48m 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 24m.
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.
Sunny
Driving Route Map
The map below follows the saved road route between Rockville and Grasonville.
Turn-by-Turn Driving Directions
Step-by-step road directions between Rockville and Grasonville.
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1
Start on South Washington Street
19 m · 9 sec · South Washington Street
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2
Turn left onto West Montgomery Avenue
1144 ft · 34 sec · West Montgomery Avenue
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3
Continue on Great Falls Road
1 km · 2 min · Great Falls Road
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4
Turn right onto Falls Road
132 m · 17 sec · Falls Road
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5
Continue on Falls Road
144 m · 18 sec · Falls Road
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6
Take the ramp slight left toward I 270 South
1769 ft · 51 sec
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7
Merge slight left
2.6 mi · 3 min
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8
Keep slight left to continue on I 270 South: Silver Spring, College Park
2.8 mi · 4 min
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9
Merge slight right onto Capital Beltway
16.3 mi · 21 min · Capital Beltway
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10
Take the exit slight right toward US 50 East: Annapolis
1 mi · 2 min
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11
Merge slight left onto John Hanson Highway
18.7 mi · 22 min · John Hanson Highway
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12
Continue on Blue Star Memorial Highway
18.7 mi · 26 min · Blue Star Memorial Highway
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13
Take the exit slight right toward Chester River Beach Road
1366 ft · 37 sec
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14
Turn right onto Chester River Beach Road
621 ft · 20 sec · Chester River Beach Road
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15
At the end of the road, turn left onto Main Street
1011 ft · 33 sec · Main Street
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16
Turn right onto Perrys Corner Road
25 m · 2 sec · Perrys Corner Road
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17
Arrive at your destination
0 m · 1 sec · Perrys Corner Road
Car Route Details
A richer read on the saved driving route between Rockville and Grasonville.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
John Hanson Highway
Merge slight left onto John Hanson Highway
18.7 mi · 00h 22m
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 Rockville and Sunny near Grasonville.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Rockville to Grasonville?
The road trip is about 62 miles (99.8 km) and usually takes 01h 24m 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 Rockville and 31.1 miles from Grasonville.
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 10.7 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 3:42 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $8.95 one way or $17.90 round trip. Estimated CO2 is about 19.5 kg one way.
What should you check before leaving?
Before you leave, expect Sunny around Rockville and Sunny near Grasonville.
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 Rockville and Grasonville. Straight-line distance: 51.34 mi (82.62 km).
#1 Rockville
The most populous city in Montgomery County, Maryland.
| Population | 69,512 |
| Coordinates | 39.0840000, -77.1527600 |
| Altitude | 137 |
| Country | United States |
#2 Grasonville
Census designated place
| Population | 3,425 |
| Coordinates | 38.9581700, -76.2102300 |
| Altitude | 3 |
| Country | United States |
End: Grasonville (-76.21023, 38.95817)
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 | $8.95 | $17.90 |
| Mid-grade | $4.60 | $10.07 | $20.14 |
| Premium | $4.95 | $10.85 | $21.70 |
| Diesel | $5.98 | $13.10 | $26.19 |
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.