How far is Olney Square, MD from Kemp Mill, MD?

The driving distance from Olney Square, MD to Kemp Mill, MD is about 14.9 miles (24 km), with a travel time of about 00h 26m by car.

  • The straight-line flight distance is about 8.9 miles (14.3 km).
  • For a round trip, plan for roughly 00h 53m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 7:00 AM to 7:00 PM EST.
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
14.93 mi
00h 26m
Flight
8.89 mi
14.31 km direct

This is an easy same-day return drive.

Learn Distance

Choose another destination from Olney Square.

Flight Distance

Direct air line
8.89 mi
Kilometers
14.31 km
Flight Time
00h 01m

Driving Distance

Road route
14.93 mi
Kilometers
24.02 km
Drive Time
00h 26m

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 26m.

Arrival Snapshot
Arrive in Kemp Mill
Sat, Nov 7, 1:10 AM EST
Return by in Olney Square
Sat, Nov 7, 1:37 AM EST
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Olney Square
2026-11-07T00:43
Arrive Kemp Mill
Sat, Nov 7, 1:10 AM EST
Route Timing
00h 26m
One way by road
Best Departure Window
7:00 AM to 7:00 PM EST
Leave when it suits your day
Arrive between
7:27 AM to 7:27 PM EST

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

Leave by
7:36 PM EST
Keeps a same-day return open with about 01h 30m at the destination.
Back in Olney Square
10:00 PM EST
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
Aspen Hill
MD

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

From Olney Square
5.8 mi
00h 13m
To Kemp Mill
9.1 mi
00h 13m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
58°F
Saturday

Sunny

Starts
Sat, Nov 7 6:00 AM EST
Wind
9 to 15 mph NW
Destination
58°F
Saturday

Sunny

Starts
Sat, Nov 7 6:00 AM EST
Wind
8 to 14 mph NW

Driving Route Map

The map below follows the saved road route between Olney Square and Kemp Mill.

Turn-by-Turn Driving Directions

Step-by-step road directions between Olney Square and Kemp Mill.

  1. 1

    Start on Wachs Terrace

    617 ft · 29 sec · Wachs Terrace

  2. 2

    At the end of the road, turn right onto Gelding Lane

    892 ft · 40 sec · Gelding Lane

  3. 3

    Turn right onto Bowie Mill Road

    1536 ft · 46 sec · Bowie Mill Road

  4. 4

    Turn right onto Olney Laytonsville Road

    1.4 km · 2 min · Olney Laytonsville Road

  5. 5

    Turn right onto Georgia Avenue

    8 mi · 16 min · Georgia Avenue

  6. 6

    Turn left onto Arcola Avenue

    1.8 mi · 5 min · Arcola Avenue

  7. 7

    Turn left onto Hoyt Street

    113 m · 18 sec · Hoyt Street

  8. 8

    Turn right onto Conti Place

    664 ft · 29 sec · Conti Place

  9. 9

    Continue on Northwood Terrace

    1498 ft · 1 min · Northwood Terrace

  10. 10

    Arrive at your destination

    0 m · 1 sec · Northwood Terrace

Car Route Details

A richer read on the saved driving route between Olney Square and Kemp Mill.

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
10 steps
7 turns on the saved route
Ramps & Exits
0
0 merges, 0 ramps or exits
Navigation Density
67.1 / 100 mi
Decision points by distance
Main Roads
Georgia Avenue
7.99 mi · 54%
Arcola Avenue
1.75 mi · 12%
Olney Laytonsville Road
0.87 mi · 6%
Bowie Mill Road
0.29 mi · 2%
Northwood Terrace
0.28 mi · 2%
Gelding Lane
0.17 mi · 1%
Longest Stretch

Georgia Avenue

Turn right onto Georgia Avenue

7.99 mi · 00h 16m

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 26m
Quick drive
Same-Day Return
00h 54m
Round-trip wheel time
Road vs Air
+6 mi
8.9 mi direct line
Halfway Stop
Aspen Hill
00h 13m from Olney Square
Leave By
7:36 PM EST
Flexible departure
Weather Watch

Sunny leaving Olney Square and Sunny near Kemp Mill.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Olney Square to Kemp Mill?

The road trip is about 14.9 miles (24 km) and usually takes 00h 26m 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?

Aspen Hill is a useful midpoint, sitting about 5.8 miles from Olney Square and 9.1 miles from Kemp Mill.

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

The direct path is about 8.9 miles (14.3 km), while the road route adds roughly 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 7:00 AM to 7:00 PM EST. If you want a more comfortable same-day return, try to leave by 7:36 PM EST.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $2.10 one way or $4.19 round trip. Estimated CO2 is about 4.7 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around Olney Square and Sunny near Kemp Mill.

Stop Ideas Near Aspen Hill

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 Aspen Hill and the surrounding midpoint area.
United States Capitol
Scenic stop 14.4 mi away

United States Capitol

Washington , DC
First St SE, Washington, DC 20004, United States
Rating 4.6/5 4,243 reviews Tourist attraction,Historical place,Historical landmark,Landmark,Federal government office
Stop photo coming soon
Practical stop 13.1 mi away

D C Government

Washington , DC
77 P St NE, Washington, DC 20002
Rating 5.0/5 2 reviews City government office,Telephone answering service
The John Wilson Building
Meeting point 13.8 mi away

The John Wilson Building

Washington , DC
1350 Pennsylvania Avenue NW, Washington, DC 20004
Rating 4.6/5 21 reviews City government office
Town Hall Liquor And Bar
Nearby stop 10.5 mi away

Town Hall Liquor And Bar

College Park , MD
8135 Baltimore Ave, College Park, MD 20740
Rating 4.3/5 319 reviews Liquor store,Bar

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Aspen Hill.

RAIL

Rockville station

6 mi away
251 Hungerford Drive at Park Rd.
RAIL

Washington Union Station

21 mi away
50 Massachusetts Ave NE
RAIL

New Carrollton station

23 mi away
4300 Garden City Drive
RAIL

Union Station

30 mi away
110 Callahan Drive

Flight Path Map

This map shows the direct air route between Olney Square and Kemp Mill. Straight-line distance: 8.89 mi (14.31 km).

Photo coming soon

#1 Olney Square

Olney Square is a place in Maryland, United States.

Population0
Coordinates39.1581600, -77.0816500
Altitude138
CountryUnited States
Kemp Mill

#2 Kemp Mill

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

Population13,445
Coordinates39.0390000, -77.0191400
Altitude103
CountryUnited States
Start: Wachs Terrace (-77.081584, 39.158116)
End: Northwood Terrace (-77.019102, 39.038948)

Estimated Travel Time

Distance: 24 km by road

SpeedTime
30 mph (48.3 km/h)00h 29m
40 mph (64.37 km/h)00h 22m
50 mph (80.47 km/h)00h 17m
60 mph (96.56 km/h)00h 14m
70 mph (112.65 km/h)00h 12m
80 mph (129 km/h)00h 11m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
0.53 gal
1.99 L · about $2.10
Round trip
$4.19
1.06 gal · 3.98 L
Estimated CO2
4.7 kg one way
Round trip: 9.4 kg / 21 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.96 $2.10 $4.19
Mid-grade $4.57 $2.42 $4.85
Premium $4.89 $2.59 $5.19
Diesel $6.30 $3.34 $6.68

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 · Nov 06, 2026

There is no time difference between Olney Square and Kemp Mill. The current time is 00:43:22.

Distance to Other Cities

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