How far is Green Valley, MD from Olney, MD?

The driving distance from Green Valley, MD to Olney, MD is about 20.4 miles (32.9 km), with a travel time of about 00h 35m by car.

  • The straight-line flight distance is about 16.4 miles (26.4 km).
  • For a round trip, plan for roughly 01h 10m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Trip Tools

Reverse, save, or send this route

This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
20.47 mi
00h 35m
Flight
16.38 mi
26.36 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Green Valley.

Flight Distance

Direct air line
16.38 mi
Kilometers
26.36 km
Flight Time
00h 01m

Driving Distance

Road route
20.47 mi
Kilometers
32.94 km
Drive Time
00h 35m

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 35m.

Arrival Snapshot
Arrive in Olney
Sun, Apr 19, 4:59 AM EDT
Return by in Green Valley
Sun, Apr 19, 5:34 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Green Valley
2026-04-19T04:23
Arrive Olney
Sun, Apr 19, 4:59 AM EDT
Route Timing
00h 35m
One way by road
Best Departure Window
7:00 AM to 7:00 PM EDT
Leave when it suits your day
Arrive between
7:35 AM to 7:35 PM EDT

This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.

Leave by
7:20 PM EDT
Keeps a same-day return open with about 01h 30m at the destination.
Back in Green Valley
10:00 PM EDT
Flexible departure

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.

Mid-route stop
Germantown
MD

Census-designated place in Montgomery County, Maryland, United States

From Green Valley
11.4 mi
00h 17m
To Olney
9 mi
00h 17m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
59°F
Sunday

Rain Showers

Starts
Sun, Apr 19 6:00 AM EDT
Wind
13 to 17 mph NW
Destination
61°F
Sunday

Rain Showers

Starts
Sun, Apr 19 6:00 AM EDT
Wind
9 to 14 mph NW

Driving Route Map

The map below follows the saved road route between Green Valley and Olney.

Turn-by-Turn Driving Directions

Step-by-step road directions between Green Valley and Olney.

  1. 1

    Start on the route

    60 m · 16 sec

  2. 2

    Turn right

    15 m · 9 sec

  3. 3

    Turn left onto Prices Distillery Road

    37 m · 12 sec · Prices Distillery Road

  4. 4

    Turn left onto Green Valley Road

    1.7 mi · 3 min · Green Valley Road

  5. 5

    At the end of the road, turn left onto Urbana Pike

    1181 ft · 20 sec · Urbana Pike

  6. 6

    Continue on Frederick Road

    2074 ft · 39 sec · Frederick Road

  7. 7

    Turn right onto Old Hundred Road

    3159 ft · 1 min · Old Hundred Road

  8. 8

    Take the ramp left toward I 270 South: Washington

    1134 ft · 30 sec

  9. 9

    Merge slight left onto Eisenhower Memorial Highway

    6 mi · 8 min · Eisenhower Memorial Highway

  10. 10

    Take the exit slight right toward MD 27: Damascus

    1090 ft · 23 sec

  11. 11

    Keep slight left to continue on MD 27 North: Damascus

    908 ft · 22 sec

  12. 12

    Turn left onto Ridge Road

    1.7 mi · 3 min · Ridge Road

  13. 13

    Turn right onto Brink Road

    2.1 mi · 4 min · Brink Road

  14. 14

    Continue on Brink Road

    3.5 mi · 6 min · Brink Road

  15. 15

    Turn right onto Laytonsville Road

    2435 ft · 49 sec · Laytonsville Road

  16. 16

    Enter the roundabout and take exit 3 toward Olney Laytonsville Road

    71 m · 5 sec · Olney Laytonsville Road

  17. 17

    Exit the roundabout onto Olney Laytonsville Road

    5.5 mi · 9 min · Olney Laytonsville Road

  18. 18

    Turn right onto Georgia Avenue

    2 m · 1 sec · Georgia Avenue

  19. 19

    Arrive at your destination

    0 m · 1 sec · Georgia Avenue

Car Route Details

A richer read on the saved driving route between Green Valley and Olney.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
19 steps
11 turns on the saved route
Ramps & Exits
5
1 merges, 4 ramps or exits
Navigation Density
92.7 / 100 mi
Decision points by distance
Main Roads
Eisenhower Memorial Highway
5.99 mi · 29%
Brink Road
5.63 mi · 28%
Olney Laytonsville Road
5.51 mi · 27%
Ridge Road
1.73 mi · 8%
Green Valley Road
1.67 mi · 8%
Old Hundred Road
0.6 mi · 3%
Longest Stretch

Eisenhower Memorial Highway

Merge slight left onto Eisenhower Memorial Highway

5.99 mi · 00h 08m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A short regional drive

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

Drive Time
00h 35m
Quick drive
Same-Day Return
01h 10m
Round-trip wheel time
Road vs Air
+4 mi
16.4 mi direct line
Halfway Stop
Germantown
00h 17m from Green Valley
Leave By
7:20 PM EDT
Flexible departure
Weather Watch

Rain Showers leaving Green Valley and Rain Showers near Olney.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Green Valley to Olney?

The road trip is about 20.4 miles (32.9 km) and usually takes 00h 35m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.

What is the halfway point on this route?

Germantown is a useful midpoint, sitting about 11.4 miles from Green Valley and 9 miles from Olney.

How much longer is the road route than the straight-line distance?

The direct path is about 16.4 miles (26.4 km), while the road route adds roughly 4 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:20 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $2.94 one way or $5.88 round trip. Estimated CO2 is about 6.4 kg one way.

What should you check before leaving?

Before you leave, expect Rain Showers around Green Valley and Rain Showers near Olney.

Stop Ideas Near Germantown

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Germantown and the surrounding midpoint area.
Griffith Park at City Hall
Scenic stop 5.4 mi away

Griffith Park at City Hall

Gaithersburg , MD
29 S Summit Ave, Gaithersburg, MD 20877, United States
Rating 4.6/5 57 reviews Park
Gaithersburg City Hall
Meeting point 5.4 mi away

Gaithersburg City Hall

Gaithersburg , MD
31 S Summit Ave, Gaithersburg, MD 20877
Rating 4.1/5 14 reviews City Hall,City clerk's office,City government office
City of Rockville City Hall
Scenic stop 10 mi away

City of Rockville City Hall

Rockville , MD
111 Maryland Ave, Rockville, MD 20850, United States
Rating 4.5/5 4 reviews Park

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Germantown.

RAIL

Rockville station

15 mi away
251 Hungerford Drive at Park Rd.
BUS

Frederick Airport, MD

29 mi away
1341 Hughes Ford Road
RAIL

Frederick, MD

29 mi away
100 South East Street
RAIL

Washington Union Station

38 mi away
50 Massachusetts Ave NE

Flight Path Map

This map shows the direct air route between Green Valley and Olney. Straight-line distance: 16.38 mi (26.36 km).

Photo coming soon

#1 Green Valley

Town in Frederick County, Maryland, United States

Population12,262
Coordinates39.3092700, -77.2972100
Altitude121
CountryUnited States
Olney

#2 Olney

Unincorporated area of Montgomery County, Maryland, United States of America

Population33,844
Coordinates39.1531600, -77.0669200
Altitude165
CountryUnited States
Start: (-77.297237, 39.309244)
End: Olney Laytonsville Road (-77.066929, 39.153178)

Estimated Travel Time

Distance: 33 km by road

SpeedTime
30 mph (48.3 km/h)00h 40m
40 mph (64.37 km/h)00h 30m
50 mph (80.47 km/h)00h 24m
60 mph (96.56 km/h)00h 20m
70 mph (112.65 km/h)00h 17m
80 mph (129 km/h)00h 15m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.72 gal
2.73 L · about $2.94
Round trip
$5.88
1.44 gal · 5.46 L
Estimated CO2
6.4 kg one way
Round trip: 12.8 kg / 28 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $4.09 $2.94 $5.88
Mid-grade $4.60 $3.31 $6.62
Premium $4.95 $3.57 $7.13
Diesel $5.98 $4.31 $8.61

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

There is no time difference between Green Valley and Olney. The current time is 04:23:47.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.