How far is Saint Charles, MD from Green Valley, MD?
The driving distance from Saint Charles, MD to Green Valley, MD is about 70.9 miles (114.1 km), with a travel time of about 01h 38m by car.
- The straight-line flight distance is about 52.4 miles (84.4 km).
- For a round trip, plan for roughly 03h 17m 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 38m.
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.
Census designated place in Prince George's County, Maryland, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Rain Showers
Driving Route Map
The map below follows the saved road route between Saint Charles and Green Valley.
Turn-by-Turn Driving Directions
Step-by-step road directions between Saint Charles and Green Valley.
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1
Start on Crain Highway
1744 ft · 29 sec · Crain Highway
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2
Continue on Crain Highway
8 mi · 13 min · Crain Highway
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3
Keep slight left to continue on Branch Avenue
9 mi · 12 min · Branch Avenue
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4
Take the exit slight right toward I 95 North, I 495 North: Baltimore, College Park
2193 ft · 53 sec
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5
Merge slight left onto Capital Beltway
18.3 mi · 25 min · Capital Beltway
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6
Keep slight left to continue on Capital Beltway
9.5 mi · 12 min · Capital Beltway
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7
Keep slight right to continue on I 270 North: Frederick
3.6 mi · 5 min
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8
Keep slight right to continue on I 270 North
18.7 mi · 25 min
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9
Take the exit slight right toward MD 109: Hyattstown, Barnesville
1005 ft · 30 sec
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10
At the end of the road, turn left onto Old Hundred Road
2325 ft · 1 min · Old Hundred Road
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11
Turn left onto Frederick Road
2074 ft · 35 sec · Frederick Road
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12
Continue on Urbana Pike
1181 ft · 24 sec · Urbana Pike
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13
Turn right onto Green Valley Road
1.7 mi · 3 min · Green Valley Road
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14
Turn right onto Prices Distillery Road
37 m · 8 sec · Prices Distillery Road
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15
Turn right
15 m · 8 sec
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16
Turn left
60 m · 15 sec
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17
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Saint Charles and Green Valley.
Straightforward drive
The saved road route has a manageable number of maneuvers and should be easy to follow with normal attention to signs.
I 270 North
Keep slight right to continue on I 270 North
18.7 mi · 00h 25m
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.
Showers And Thunderstorms leaving Saint Charles and Rain Showers near Green Valley.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Saint Charles to Green Valley?
The road trip is about 70.9 miles (114.1 km) and usually takes 01h 38m 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?
Beltsville is a useful midpoint, sitting about 35.5 miles from Saint Charles and 35.4 miles from Green Valley.
How much longer is the road route than the straight-line distance?
The direct path is about 52.4 miles (84.4 km), while the road route adds roughly 18.5 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 3:12 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.22 one way or $20.43 round trip. Estimated CO2 is about 22.2 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Saint Charles and Rain Showers near Green Valley.
Stop Ideas Near Beltsville
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
United States Capitol
D C Government
THEARC: Town Hall Education Arts Recreation Campus
Town Hall Liquor And Bar
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Beltsville.
New Carrollton station
Washington Union Station
Rockville station
BWI Rail Station
Flight Path Map
This map shows the direct air route between Saint Charles and Green Valley. Straight-line distance: 52.46 mi (84.42 km).
#1 Saint Charles
City in St.
| Population | 36,376 |
| Coordinates | 38.6031700, -76.9385800 |
| Altitude | 61 |
| Country | United States |
#2 Green Valley
Town in Frederick County, Maryland, United States
| Population | 12,262 |
| Coordinates | 39.3092700, -77.2972100 |
| Altitude | 121 |
| Country | United States |
End: Green Valley (-77.29721, 39.30927)
Estimated Travel Time
Distance: 114 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 21m |
| 40 mph (64.37 km/h) | 01h 46m |
| 50 mph (80.47 km/h) | 01h 25m |
| 60 mph (96.56 km/h) | 01h 10m |
| 70 mph (112.65 km/h) | 01h 00m |
| 80 mph (129 km/h) | 00h 53m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $4.09 | $10.22 | $20.43 |
| Mid-grade | $4.60 | $11.50 | $23.00 |
| Premium | $4.95 | $12.39 | $24.77 |
| Diesel | $5.98 | $14.95 | $29.90 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.